Mouse (Korean Drama)

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Drama: Mouse
Revised romanization: Mouse
Hangul: 마우스
Director: Choi Joon-Bae
Writer: Choi Ran
Network: tvN
Episodes: 20
Release Date: March 3 - May 19, 2021
Runtime: Wed. & Thur. 22:30
Language: Korean
Country: South Korea

Plot Synopsis by AsianWiki Staff ©

Jung Ba-Reum (Lee Seung-Gi) is a rookie police officer, working at a police substation. He is an honest person and tries to attain justice. He faces a psychopath murderer, who places the entire nation in fear. Jung Ba-Reum’s life is totally changed afterwards.

Notes

"Mouse" takes over tvN's Wed. & Thur. 22:30 time slot previously occupied by "True Beauty" and followed by "My Roommate Is A Gumiho" on May 26, 2021.
Choi Jin-Hyuk was offered the second lead role, but declined.
Ep. 8 airs Thursday, April 8, 2021 instead of Wednesday, April 7, 2021 as originally scheduled. A special "Mouse: Restart" episode aired on Wednesday, April 7, 2021 that provides a recap of the drama series and interviews with cast members.
Ep. 16 & 17, which was originally scheduled to air April 28th and April 29th, 2021, will air on May 5th and 6th, 2021. In its place, a special two episode "Mouse: The Predator" will air on April 28th and April 29th, 2021.

Cast



Lee Seung-Gi	Lee Hee-Jun	Park Ju-Hyun	Kyung Soo-Jin
Jung Ba-Reum	Go Mu-Chi	Oh Bong-Yi	Choi Hong-Ju

Jung Ba-Reum's Friends



Lee Seo-Jun	Woo Ji-Hyun
Na Chi-Kook	Koo Dong-Koo

Jung Ba-Reum's Family



Lee Un-Jung	Kang Mal-Geum	Lee Do-Hyung	Lee Chae-Hyun
Jung Ba-Reum's mother	Jung Ba-Reum's aunt	Jung Ba-Reum's uncle	Hoon-Suk

Go Mu-Chi's Family



Kim Young-Jae	Seo Jung-Yeon	Jung Gang-Hee	Jo Yeon-Ho	Song Min-Jae
Go Mu-Won	Go Mu-Chi's mother	Go Mu-Chi's father	Go Mu-Won (child)	Go Mu-Chi (child)

Seo Dong-Hyun

Go Mu-Chi (teen) (ep.2)

Oh Bong-Yi's Family



Kim Young-Ok	Joo Ye-Rim
Bong-Yi's grandmother	Oh Bong-Yi (child)

Moojin Bokbu Police Station



Ahn Nae-Sang	Hyun Bong-Sik	Yoon Seo-Hyun	P.O	Jung Suk-Yong
Park Du-Seok	Bok Ho-Nam	Kang Ki-Hyeok	Shin Sang	Woo Jae-Pil



Kim Min-Soo	Uhm Hye-Soo
Lee Min-Soo	police officer (ep.5)

Police



Bae Sung-Il	Seon Yool-Woo	Kim Woo-Jin	Jang Dae-Woong	Park Jae-Wan
detective	detective	Police Officer Kim (ep.2,14)	Police Officer Park Joo-Young (ep.2,4)	Police Commissioner (ep.4,20)



So Yun-Ho	Park Joon-Sang	Ji Sung-Geun	Choi Yoon-Bum
police officer (ep.6)	disciplinary hearing judge (ep.7)	police officer (ep.8)	Nam Yoon-Bum (ep.9-10)

Head Hunter's Group



Ahn Jae-Wook	Kim Jung-Nan	Kwon Hwa-Woon	Jo Jae-Yun
Han Seo-Joon	Sung Ji-Eun	Sung Yo-Han	Daniel Lee



Kwon Oh-Gun	Jang Eui-Don	Jung Seung-Wook	Go Woo-Ri	Paul Battle
Sung Yo-Han (child)	Attorney Hwang (ep.1)	messenger (ep.2)	Jennifer (ep.9)	Cambridge doctor (ep.9)



Brad Curtin	Garrison Keener	Elaine Vega	Alison Rock
Dr. Gary (ep.9)	Dr. Fallon (ep.9)	patient (ep.9)	patient's mother (ep.9)

Detective Park Du-Seok's Family



Kim Hyo-Jin	Park So-Yi	Kim Ye-Sung
Bang Yoo-Hwa	Park Hyun-Soo	Park Hyun-Suk

Jung Jae-Hoon's Family



Kim Kang-Hoon	Kim Kyeol	Kim Dong-Ha	Ahn Seo-Yeon
Jung Jae-Hoon	Jung Jae-Hoon's father	Jung Jae-Min	Jung Jae-Hee (ep.1,18)

Song Soo-Jung's Family



Ha-Young	Kim Min-Kyung	Baek Jae-Woo	Song Boo-Gun
Song Soo-Jung	Oh Mi-Soon	Song Soo-Ho (young)	Song Soo-Ho

Sung Yo-Han's Friend

Son Woo-Hyun

Kim Joon-Sung

Other Victims



Park Hye-Na	Seon A-Rin	Kim Ha-Eon
Byun Soon-Young	Jo Mi-Jung	Kim Han-Kook

Victims' Group



Chun Jung-Ha	Park Eun-Young	Cherish Maningat	Im Yu-Ran	Na Ho-Won
Na Chi-Kook's mother	staffing agency woman	Kim Han-Kook's mother	witness (ep.2)	bus driver (ep.2)



Kim Jeong-Han	Kim Joo-A	Chae Yeon-Hee	BohRaNah	Kang Ro-Chae
bus stop man (ep.2)	orphanage employee (ep.5)	grocery store employee (ep.5)	hostess bar manager (ep.5,10)	Park Hye-Won (ep.5,10)



Kim Hyo-Gyeong	Kim Mi-Young	Jung Chung-Gu	Kim Su-Kyung
Byun Min-Ji (ep.5)	Jo Mi-Jung's mother (ep.16,20)	Jo Mi-Jung's father (ep.16,20)	Park Jong-Ho's sister (ep.16,20)

Tie-Knot Murders' Group



Hong Eun-Jeong	Shin Hee-Gook	Song Jae-Hee	Hong Suk-Youn	Jung Byung-Ho
Seul-Ki	Koo Dong-Koo's friend (ep.7)	Attorney Woo Hyung-Chul	Kim Baek-Ki	Jung Man-Ho



Park Jong-Moo	Park Hyun-Jeong	Kim Ha-Neul	Yoo Yeon	Seo Yoon-Hyuk
tie-knot expert (ep.7)	Kim Young-Hee (ep.8)	Jung Soo-Jin (ep.9-10	Woo Hyung-Chul's mother (ep.10)	Woo Hyung-Chul (child) (ep.10)



Park Sang-Hyun	Kim Ji-Su	Shin Kang-Kyun
Lee Yoon-Jung (ep.10)	Park Hye-Won's friend (ep.10)	Kim Jin-Ah's grandfather (ep.10)

Kang Duk-Soo's Group



Jung Eun-Pyo	Shin Yun-Sook	Kwon Ye-Eun	Choi Sol-Hee	Park Jung-Eon
Kang Duk-Soo	Kang Duk-Soo's mother	Yu-Na	Yu-Na's mother	judge (ep.11)



Moon Hak-Jin	Choi Gyo-Sik
parole officer (ep.11)	man discovers body (ep.12-13)

Guryeong / Suseong Serial Murder Group



Kim Moon-Ho	Jang Yong-Chul	Hwang Se-On
Lee Jae-Sik	Kim Bong-Cheol	Kim Da-Seul

Gasoline Murder's Group



Kim Sung-Jun	Ji Tae-Yang	Min Jung-Sup	Choi Min-Kyu	Lee Yong-Nyeo
Myung Ko-Nam (ep.14)	Kim Byung-Tae (ep.14)	Han Soo-Chul (ep.14,20)	Han Soo-Chul (young) (ep.14,20)	grandmother (ep.14)



Lim Yong-Soon	Kim Bi-Bi	Ha Seung-Youn	Ko Eun-Bi	Shin Soo-Hyun
school custodian (ep.14)	nun (ep.14,18)	Angela (ep.14)	Angela (child) (ep.14)	Michaela

Sherlock Hong-Ju



Park Ki-Ryoong	Byun Yoon-Jeong	Kim Young-Joo	Shim Yu-Seung	Kim Hyun-Tae
OBN News Chief (ep.4-5)	Mrs. Oh (ep.5)	staff (ep.5)	staff (ep.5)	assistant director

Fact Check



Kim Sung-Kyung	Jo Wan-Ki
Fact Check host (ep.5-6)	Reporter Yang

Government Officials



Jung Ae-Ri	Yoo Ha-Bok	Park Byung-Wook	Min Eung-Sik	Park Yong
Choi Young-Shin	Assembly Chairman Shin Sung-Min	South Korean President (ep.1)	Shin Jae-Hyung (ep.1)	Kim Ji-Wan (ep.1)



Yoon Bok-Sung	Lee Ja-Ryoung	Sung Chan-Ho	Kang Moon-Kyung
Jung Joong-Suk (ep.1)	Kim Woo-Sun (ep.1)	government official (ep.1)	President (ep.6,12)

NFS



Oh Seung-Chan	Cha Seung-Min
Medical Examiner Park	NFS staff (ep.6)

Prison Group



Song In-Seob	Kwak Min-Ho	Shin Chi-Young	Seo Min-Sung
prison doctor	prisoner (ep.3)	prison chaplain (ep.3)	Prison Officer Kim (ep.9)

Hospital Group



Kwon Hyuk-Soo	Kim Sang-Il	Uhm Ja-Yoon	Kang Chan-Yang	Lee Si-Young
doctor	Dr. Park Min-Joon	doctor	nurse (ep.1)	ER nurse (ep.2-3)



Kim Gwan-Mo	Yeo Woon-Bok	Jung Hyun-Suk	Min Sang-Chul
ER intern (ep.2)	doctor (ep.7,14)	Dr. No Young-Hoon (ep.8)	doctor (ep.16)

Mystery Kids



Seo Woo-Jin	Kim Soo-In
mystery boy	mystery girl

Others



Lee Jae-Eun	Kim Eun-Jin
Koo Dong-Koo's mother	nanny



Han Chang-Hyun	Kim Mi-Hye	Yoo Yong	Kim Ro-Sa	Jung Nan-Hee
government employee (ep.1)	Jae-Hoon's teacher (ep.1,16)	Sisters Killer (ep.2,9)	student's mother (ep.3)	teacher (ep.3)



Jung Woon	Jung Hee-Young	Kang Suk-Won	Oh Ji-Young	Jang Jae-Kwon
gangster (ep.3)	store owner (ep.3)	talk show guest (ep.4)	talk show guest (ep.4)	talk show guest (ep.4)



Choi Yi-Sun	Yang Ha-Yoon	Oh Min-Joon	Kim A-Ram	Jeong Yoon-Hee
motorcycle deliveryman (ep.5)	Min-Jung (ep.5)	bully (ep.5,9)	Sung Ji-Eun's employee (ep.7)	reporter (ep.7)



Hwang Yoon-Joo	Hwang Jung-Yoon	Park Mi-Na	Choi Ji-Woo	Lee Wang-Soo
stalked woman (ep.9)	stalked woman's sister (ep.9)	convenience store woman (ep.10,16)	restaurant customer (ep.11)	computer repairman (ep.15,18)



Seo Suk-Kyu	Jung Ja-Young	Son Seung-Hoon	Kim Deok-Ju	Kim Young-Sun
motel OZ agent (ep.15-16)	motel employee (ep.16)	insurance agent (ep.16)	Jae-Hoon's neighbor (ep.17)	science teacher (ep.17)



Mun Yong-Il	Lee Seung-Hyeong	Kim Yo-Han
Prosecutor Yoon (ep.18)	Choi Young-Shin's attorney (ep.20)	brain transplant patient (ep.20)

Additional Cast Members:

Ok Il-Jae - (ep.9)
Park Se-Ryeon - nurse (ep.15)
Lee Soo-Yeon

Trailers

Episode Ratings

Date	Episode	AGB
Date	Episode	Nationwide	Seoul
2021-03-03	1	4.948%	5.370%
2021-03-04	2	4.044%	4.886%
2021-03-10	3	5.985%	6.461%
2021-03-11	4	6.202%	7.160%
2021-03-17	5	5.796%	6.929%
2021-03-18	6	6.672%	7.530%
2021-03-24	7	5.502%	6.324%
2021-03-25	8	6.414%	7.362%
2021-03-31	9	5.563%	5.908%
2021-04-01	10	5.604%	6.233%
2021-04-08	11	5.394%	5.673%
2021-04-14	12	5.163%	5.871%
2021-04-15	13	5.374%	5.725%
2021-04-21	14	4.964%	5.528%
2021-04-22	15	4.901%	5.040%
2021-05-05	16	5.003%	5.617%
2021-05-06	17	5.392%	6.036%
2021-05-12	18	5.479%	5.933%
2021-05-13	19	5.603%	6.060%
2021-05-19	20	6.246%	6.902%

Source: AGB Nielson

Comments

4ff Nov 12 2023 7:55 pm i rate this drama 6/10 it should be only 10 or 12 episodes, but tbh Lee Seung-Gi acting was freaking amazing he deserved to at least get an emmy nomination but the world is unfair

Emmy Sep 28 2023 10:39 am First of all I found the movie boring at the first episode, because I don’t watch Korea movies and it was my first Korea movie ever and I learnt a lot of things in the movie and I love it and it the best Korea movie ever

Luna Jul 20 2023 9:47 am This drama creeped me out way back 2021. It gave me nightmares for months and it was the reason why I could no longer watch horror/creepy dramas and movies. Having said that, I think it was an effective drama. You can give it a try.

Akanksha Jun 02 2023 11:46 pm Eye for an eye will make whole world blind- Mahatma Gandhi

S Apr 02 2023 1:51 am Textbook definition of a show that has been dragged for as long as possible I’m honestly surprised it hasn’t been renewed… the fact that this show dragged on for so long quickly made me lose interest and ultimately anticipation for the ending (which I had alr predicted). Whatever you’re thinking might be happening by episode 14… you are probably right and shouldn’t torture yourself to reach the end of this show. I will say this show had a very promising start and I really liked the overall premise of this show but it’s a shame as it could’ve been done really well had it not been for the absurd amount of episodes. idk if I’ve watched too many dramas but I saw this one coming just not a fan of those kinda plot twists as they can call for some really messy writing and some chronology issues. Also (spoiler) I don’t understand how hongjus boss went from wanting to pull the plug on the broadcast near the start of the show to when he eventually gets the door open allowing it to continue and calmly watching behind hongju as she controls the broadcast ?? makes 0 sense to me.

Harold Mar 28 2023 2:16 am This is my first Lee Seung Gi drama and Im actually impressed with his acting the duality was so good that I actually believed he was a good person , a helping police officer and a national hero but all of it was an acting of him, my heart breaks for Detective Mu Chi and Bong yi when the drama revealed who was the real killer of Father Go (Mu Chi's brother) and the grandmother of Bong Yi, I left traumatized and shocked, I feel bad for Bong Yi when your savior was actually the serial killer who brutally killed your grandmother, I find minor flaws forgivable with how detailed and cohesive the plot was , the messages was clear, great acting for everyone, i couldn't praise enough how good this drama was, it was the best psychological, sci fi thriller I ever watched even better than "Signal" and "Tunnel it really it was, just keep it in mind that it has sci fi elements like brain transplant and psychopathic genes of potential murderers. Now just to answer Tina's comment below me , I think she didn't really paid attention much to every details that's why she feels like something was left with no answers which is actually not true , just to answer his question 1 number 1 , A big No it was blamed on Ba reum it was on Sung Yo Han because of all the prejudice we have with him being a headhunters son which is actually Jung Ba reum the national hero, Number 2. For Chi Gook's murder , Ba reum was feel offended with what Chi Gook's said that's it's disgusting to see those weak criminals who killed innocent people (not the actual word of Chi Gook's tho) .number 3. Psychopaths believe that they are superior beings to normal people just like humans killing other animals, we feel no remorse or empathy towards them because we are a superior beings, it's just a pleasure of killing , number 4 Hong Ju' time in prison was 3 years , she got no pardoned like Candidate Young shin, I think 3 years was enough of jail time for her. Number 5 , Yo Han has a genius gene usually mistaken for psychopathic genes upon gene testing thats why he probably got accelerated in medical school tho the drama itself didnt gave much information about it. Number 6 the bill wasn't passed at all that's Young Shin was so obsessed with ser8 killers like Ba reum , the more victims the more public outcry to passed the bill to kill fetuses with potential psychopathic genes, I suggest for you to rewatch it so you will get your questions answers for yourself, the drama has little plot holes to none , so if you're planning to watch it go ahead you will like it for sure especially if you like sci Fi thriller. My rating 10/10

Tina Jan 28 2023 6:51 am 7/10 Honestly, it was too predictable at times for me and the ending was just like that of all kdramas...

Some of the major faults include the following:

1. Everything was blamed on Ba-Reum even though he didn't kill all those people. 2. Still no proper explanation for Chi-Kook's murder. 3. Always emphasising how psychopaths don't fell emotion, but talking about the enjoyment and excitement they feel when they kill. Aren't those emotions too? or don't they count when it comes to psychopaths? 4. From the time line, it appears that Hong-Ju got around 3 years and 6 months of jail time. I guess it's easier to forgive people for manipulating others and using them to kill then to actually feel sympathy for someone who was used as a lab rat. 5. Ba-Reum and Yo-Han should be around the same age so how can Yo-Han be a neurosurgeon while Ba-Reum is a rookie cop when the show starts? The timeline is not believable. Typical psychopaths don't just excel at killing, they are brilliant in other things and the character of Ba-Reum was never really shown to its full potential. 6. The Bill to kill fetuses with the psychopath gene was passed, but the crime rate did not drop, murders were still being committed after Ba-Reum went to jail (I guess the writers did not want to show this or thought that it was irrelevant, but it is. Everyone is capable to murder and psychopaths do feel emotions). Killing those fetuses won't really change anything. The more things change, the more they stay the same...There is an irrefutable truth is this saying.

Honestly, when the plot was good, it was good, but when it was bad, it got worse.

The episodes were too long, the script writing was good at times, but ultimately the question of how psychopaths come into being was never truly answered and as always, no matter how righteous someone seems, when it comes to the people who matter to them or the things they love, they just simply loss all reason and prove once again that humans are selfish by nature.

It was an intriguing watch (7/10)

BookingToGo Jan 04 2023 3:28 am one of the best k-drama ever :')

Omar Oct 31 2022 3:13 am 5/10 My only (and biggest) criticism is that there are too many twists some twists are shocking and enrich the story, others are boring and make the story unnecessary longer It could have been a 10 to 12 episode show, but they dragged it for too long with purposeless twists

Ani Oct 27 2022 6:00 am I cry at the end.. can't move on..this the drama is masterpiece

risc Oct 23 2022 7:25 am The Plot Twist ?? I just love everything about Mouse i think this is Best Plot so far. To the Writer, I don’t know whats on your mind. But, that was siccck! ?

KST Sep 08 2022 1:49 am For the first halfof the story I thought the killer was Yo han and it was really hard to believe that Jung ba ram is the killer. Actually watching this drama is really make us impatient and stressful.But this drama has the best plot ever!

KST Sep 08 2022 1:47 am Lee seung gi"s acting was really amazing here as both innocent jug ba reum and killer.No wonder he win the best actor award for this.

TUD Sep 07 2022 10:57 am One of the best dramas ever!

KST Sep 07 2022 10:47 am One of the best hits if all time!

RphHH Sep 03 2022 1:20 pm The best Korean drama I've ever watched.

Mae Aug 11 2022 7:01 am This is highly recommended drama!!!!

Eri Jul 17 2022 4:53 am Much of the buildup was lost on me because someone spoiled who the killer was before I even get to watch this. I'm a fan of psychological thrillers and although, admittedly, this has a lot of nonsense, lines and scenes that wasn't quite delivered well, and reasoning that's far too reaching, I still liked it a lot. This feels like the classic gritty detective novels which I really dig. We have the wolf in the sheep's clothing, the suspicious civ who danced on the palm of the villain and died unjustly, the hotheaded detective who's too straightforward and stupid to keep up with the mind tango, the strong and slightly annoying romantic interests, and there are also characters who knew far more than they let on but will keep quiet even if it kills people. This drama may be full of tropes but there are also elements that separate it from the rest. The ending made me sad and applaud the writer for bringing conclusion to the sins and lives of the characters (except for the passing of the bill, I'm still iffy about the message it was trying to push forth). Anyway, I could say that Jung Ba Reum's character is definitely my favorite, he's obviously one of the protagonists but his presence was gradual and by the the time the finale of the drama comes around, my feelings towards him is mixed, just like how the people around him feels. LSG is really one of the best and I can't wait to watch more of his future project.

It just bugs me why there are parts where scene continuity is not a thing. And this is the kind of drama that's supposed to make the viewers take note of the little details and "clues", and to be involved in the crime solving or something but maybe they didn't care about that at all. All in all this is well done, really great actors and good plot. 7/10.

Koo Jun 23 2022 1:45 am It’s just adorable, I rate it 9.9/10 the best drama I have ever seen

Monette May 22 2022 10:07 am I liked it.

It's star studded.

Plot, twist & main story are put together perfectly.

It just saddened me that the mom have never, to my remembrance, tried to hug or just say one good word to the psychopath main character or lee seung gi, the reason also some grew up like them. Even wild animal can be changed just to show their importance and let them feel loved.

Komit May 14 2022 2:18 pm Hmmm - it starts good, but then - too many strange and unlogical twists and plot holes. Hard to watch. Otherwise good acting.

Suzy Apr 15 2022 9:08 am This drama is Awesomeee!! 6 STAR!!

Stacy Mar 28 2022 10:55 am Sorry! I'm so regardless. Already see it's Na Chi-Kook by Lee Seo-Jun.

Stacy Mar 28 2022 9:59 am Is that Kim Kyung-Nam playing the officer in prison in first ep?? About 20 minute or some. I'm a bit curious cause I can't find the one who's playing this officer...

lili Mar 17 2022 11:26 pm I feel bad for Yo Han. He suffered a lot and he don't deserve his death. Imagine being called "psychopath" "murderer" without doing anything. Imagine how he must've felt that time. I really love and enjoy this series. Lee Seung Gi pogi mo lageee waaahh HAHAHAHAH

Windhi Mar 14 2022 10:59 am Really deserved and deserved yesterday Lee Seung Gi won the Daesang at the 2021 AAA Awards because of this drama. Lee seung gi's acting is great. Even though the ending of this Mouse drama is perfect, I still hope this drama has a second season, jung ba reum is reincarnated and lee seung gi is the main character again. Miss Mouse Missss You Bareum.

too god Feb 21 2022 2:18 am 9.9/10 please more of this kind of kdrama.

dddddddddd Feb 13 2022 10:21 pm Those saying the plot is complicated just don't understand how amazing it actually was. This is probably the best thriller ever with Black, and appears to have been written by the same writer as well

thebieber Feb 01 2022 1:34 am My goodness, episode 5 had too much drama!!!

Park OW Dec 25 2021 1:40 pm So unoriginal, direct copycat of idea from Se7en... Come up with something original please.... Completely overdramatic

HELLO Dec 07 2021 6:28 am Lee SEung Gi! what an actor. my 1st time watching him. This is what you call an actor who has balls, and doesn't settle on playsafe romcom dramas .

Ooree Nov 16 2021 11:23 am Everyone's talking about the great actors, but no one's talking about Sung Yohan's unfair death☹️☹️...... I felt really sorry and sad for him. He really deserved a national apology in fact.

Ujinaaa Nov 14 2021 4:17 pm One of the best k-dramas of all time , hats off.

Aya Nov 01 2021 1:48 am I've liked it so far but EP5 the live broadcast was just full-on dramatics. It seemed over-the-top & just unrealistic. Any broadcasting show wouldnt allow something so unorganized & gruesome to air?

[SPOILER] The psychopath relating it to the deadly sins make sense but children stories too? He's got way too much time in his hands. I know psychopaths love games but I doubt anyone would go as far as that in choosing targets lol

The head hunter was a good one. Just instincts. The new one, seems pretentious as hell.

Hoping

MNA Oct 21 2021 3:44 am One of the greatest kdramas I have ever seen. This elevated the crime/mystery/thriller genre to a new level! Congratulations to the cast and crew of this spectacular show!

Zeynep Oct 12 2021 12:13 pm The best drama i have ever seen! A great storyline, amazing cast and tragedy! The first time i cried for a killer. You must watch before you die.

Diana Camelia Oct 11 2021 10:19 pm still can’t move on from this drama?

Agatha Sep 29 2021 3:02 am If you're looking for a sign, here it is. Just watch it.

On a side note, I feel like some comments are too critical already. But if you're a suspense-thriller fan, like me, who loves serial murders, this isn't something to miss out on. It gets pretty dark, and I love it!

P.S. Today marks the day that I become a Lee Seung Gi fan. Fighting, Oppa!

GrassForNeos Sep 19 2021 10:58 pm Personally, I think the first 3 episodes kind of slow but I didn't realize that these episodes are actually crucial cause it gives all the hints that I overlooked from the beginning. I know some of the plots like psychopath genes are not that realistic but this is a drama so obviously, it would exaggerate a bit. I love every twist and connection of every plot from the beginning to the last. The connection between every character story and the murder scenes are magnificent. The details on every scene that people should have pay attention to. Kudos to all the crews of this drama, you guys did a great job!

Honestly, my least favourite characters are Oh Bong Yi and Choi Hong Ju cause they are kind of annoying and busy body especially Choi Hong Ju when she can enter the police station at her own will.

I didn't expect that this drama would be this sad, I still cannot move on from Jung Ba Reum. I think he should be treated instead of being triggered like that. Honestly, I do feel sympathy for him cause his whole life is sad and damn that church scene, I literally cried. I already watched the scenes twice and it never fails to give me tears.

For Lee Seung Gi, I know you are a good actor but damn your acting in this drama is on another level. I love how realistic your eyes are. The emotions that you show from the beginning till the last episodes are amazing. Please keep on continue being an outstanding actor.

Mmmi Sep 18 2021 1:22 am I agree with @Detective Konam Jr I'm a psychology student and have learnt about Psychopath for a bit. They way they tell about all Psychopath / gene being bad/serial killers, bugs me the most. I came back to the show after dropped it for awhile because of the reason above. But anything else in this series are perfect, the complicated plot lines, twists and performance of all the casts are just amazing! Also kudos to production teams and crews, you guys did a GREAT job! ? one of the master pieces this year - you won't be disappointed if u like this genre ?

Norimy Sep 07 2021 2:50 am Great drama...never mind if it's too complicated to understand some scenes, or having quite an unbelievable plot. I really enjoyed it as a whole, Ba Reum was also a victim and manipulated by that secret organisation Oz. The last episode had me in tears, especially that very touching scene at the church, when Ba Reum finally came to terms with himself. And Moo Chi selling fresh eggs...unthinkably cute. Thank you to writers, crew and actors and everyone else who made this a great show. Kudos to all of you...

Detective Konam Jr Sep 05 2021 10:14 am Great for binging. I'd say 8/10. My score for it will probs be higher should've they compressed the episodes to around 16 eps. Too many flashbacks, dragging plotlines...

On another note, I hope if there will be season 2 they touch more on functional psychopaths. Not because they have psychopath gene, are they meant to be lowly serial killers. Some turn into ruthless businessmen, politician, etc. These people do not belong either to the 1% of "pure will" like what Dr. Lee said about Yohan.

Emini Aug 29 2021 8:02 pm I was enjoying the drama initially. But after watching the whole thing, I cannot help but agree with @Silvia's comment of the drama being "unrealistic, manipulative, very strange camera cut and presentation of chronology"

Cutie Chibi Aug 24 2021 4:58 pm Mouse is a really good thriller series imo. It isn't super to be realistic, but I really enjoyed it! This show is binge-watch material bc many questions get opened up as you keep on watching it. I loveeee how entangled the characters relationships are. The irony in some scenes drive you crazy ngl. The drama gets better toward the middle for me, although it already started out great. I had so much fun while watching this drama, thank you!!

Silvia Aug 07 2021 4:44 am Most overrated thing since Final Fantasy 7. Unrealistic, manipulative, very strange camera cut and presentation of chronology.

Lola Jul 27 2021 2:14 pm Outstanding! Especially Lee Seung Gi. What an amazing talent!

isla Jul 26 2021 5:43 pm @Marie It’s no coincidence, actually. Black and Mouse was written by the same writer. So, maybe when Black was written, the writer already has the idea for Mouse as well. I really love the correlation, I was mind-blown when I first realized too!

Marie Jul 24 2021 10:18 pm I was just mined-blow when I re-watch the drama Black and there was a scene that they're gonna do the "Mouse" drama. Kim Jae-Young's character Leo had an upcoming drama entitled also "Mouse", (which was named "Rats" for its plagiarized title but he didn't agree to do so because it was plagiarized and he felt injustice towards the original writer whom they saved when the writer attempted suicide) and the main character of the drama is a police that's why Leo's hanging around with Black (Song Seung-Hoon). And I realized that Lee Seung-Gi's character in the drama "Mouse" is a police. What a coincidence! Maybe TVN acquired the actual script.

Tiffany Jul 22 2021 3:55 am Lee Seung Gi didn't disappoint me with his drama's choice !! one of the best drama this year !!

avatarian Jul 20 2021 10:54 am The Best Drama Ever!! ive watched kdrama since 2010 and this is by far the best kdrama yall should totally watch this!

Blank Jul 14 2021 7:30 am Lee seung gi make me crying for his character. Even he is psycopath. This story is uniq but I just hoping jung ba reum is not the psycopath. Just don't believe the plot twist.

Fei Jul 13 2021 10:25 am Beat thriller drama i've watched this year!!

Ley Jul 12 2021 9:07 am Excellent Drama!! This is crazy!!

Shaza Jul 11 2021 2:42 am Best drama ever ?

Jrads86 Jun 27 2021 6:45 am Amazing just really amazing drama! Mind blowing... All the actors and actresses played their role so well specially Lee Heejun and Lee Seung-gi.. This drama deserve an award!

Chau Jun 27 2021 1:40 am This drama is definitely mind-blowing to me =)) In the first two ep you may be able to guess a little about the plot, but the more you watch, the more you lost as everything will change before your eyes ? It is twist-on-twist. The writer and director really knew how to keep their viewers until the last episode. When i watched around ep 7,8, i was lost because there was so much information and conflicting points that i cant explain which also haunted me in my dreams ? i know i was obsessed with this drama. 20 eps seem long but trust me you wont regret watching it. The acting was also on point!! Love Go Mu Chi and Jung Ba Reum character!!

Excellent acting; captivating, mood-setting, diverse OST, intriguing storytelling Jun 21 2021 6:16 am (SPOILERS TILL THE END)

As a viewer who doesn’t like to spoil herself or watch any teasers or bother reading up promotional material/interviews/posters/news and forgetting every synopsis by the time I click play….. I went in to the drama quite blind only expecting there to be two male leads and highly anticipating a new thriller with promising cast and hoping Lee Seung Gi’s new drama had a better & closed ending unlike his last two cliffhangers and totally expecting him to play the good cop.

…..

But from the first episode that adult Ba Reum appears in I suspected him to be serial killer. So unlike many who were sure or spoiled from promotional material or early news like Kim Kang Hoon was casted to play Seung Gi’s younger version……

One of the reasons that made Seung Gi’s Ba Reum incredibly suspicious — whether he was a serial killer or simply someone hiding lots of secrets/a psychopathic nature — was the way he acted. Over the top acting but with blank eyes, too pleasant, one too many fake smiles, exaggerated reactions, also some contradictions like appearing to be not very smart or strong or cut out for his job but at the same time being a fit cop with good ideas and startling passion to be part of dangerous investigations.

Quite like the way Jung Ba Reum later describes a psychopath imitating a normal person’s behaviour. There’s a stark contrast in the way post surgery Ba Reum acts even when both versions on screen are going through the same good guy motions. Go Moo Chi states it well at the end, that he now understands what the Head Hunter meant by emotional eyes when he looks a miserable Ba Reum in jail.

(In contrast Sung Yo Han despite his very cold demeanour was much nuanced, comfortable in his skin and expressive by eyes despite being the obvious suspect).

Ofcourse the drama then makes me end up playing the denial card or wishing that Ba Reum is after all innocent. If not for the struggling Ba Reum who was also wishing the same then for all the people who loved him and believed in him and actually had a good trustworthy person for a short while.

Tl:dr Just here to commend the acting. Seung Gi did incredibly well portraying the different faces of Jung Ba Reum- from psycho murderer to psycho/sociopath pretending to fit into society to good guy with amnesia/identity crisis to guilty man in pain. Everyone’s been fantastic. The post drama special really makes you appreciate their efforts too.

Ney Jun 20 2021 12:03 am This drama is top tier..they're literally dropping hints everywhere along these 20 episodes long drama and i as audience just too stupid (or maybe hopeful) to process those info. Everyone conclude in making this drama should be getting awards...really

(SPOILER ALERT) They really gave plot twist after twist and twist...that's why i really love it. To be honest, i know from the very first time i watch it that JBR is the predator..yea because so many spoiler out there and i already saw poster from Mouse : The Predator....and there is Seung Gi. And there are sooo many suspicious things happening around JBR...like after it tells the story about Jung Jaehoon (Head Hunter's son) they will shift to JBR life rn. There is one scene where Yo Han mom's saw JBR and then she runs and vomit. But i'm a foolish all along and still thought that Yo Han is Jae Hoon? it's because his mom is head hunter's wife. Even after Yo Han dies i still think he's guilty...ah that poor boy. I'm so mad when they made JBR a bad person after brain surgery. I really thought all of that because of Yo Han's brain╥﹏╥ then they show JBR basement and boom, he's the predator not Yo Han. Shattered every hope and that's why this is the best mindblowing drama ever. The writer of this drama is really cruel because they make JBR looks so innocent throughout the earlier episode and make the viewers love him at first, uggh(•ˋ _ ˊ•)

Cain Jun 19 2021 11:13 am SPOILER AHEAD!

Don't you find it amazing that the writer gave us the satisfaction of the real serial killer at the end of ep.4 BUT turned it around in ep.5 to make us doubt again.

Then they made us thought "There could be another serial killer after all".

Then when Ba-reum started to kill after his brain surgery, we thought, "Now a new serial killer was born. 2 serial killers need to be captured ASAP"

Eventually, we were served with a hard cold truth that Ba-reum was the serial killer all along.

Truly amazing.

Anon Jun 19 2021 12:29 am Fave characters are O'bong and Fukshi :3

@l like it but Jun 18 2021 11:26 am Watch the Sherlock Hong Ju broadcast episodes again to follow the sequence of events real time because the way they portray it seems like something that actually happened later happened first -in order to give dramatic impact.

It takes a bit of keen eye observation. I was also struggling to figure out which scene was supposed to take place first and thus what actually happened.

I’ve forgotten quite a bit since it’s been a while… but Hong Ju barricaded herself and took command of the control room for a while when the Chief wanted to pull the plug on the show. But by the time he got a key and forced himself in, things were progressing well for Moo Chi. Then just when they all thought they had the upper hand, the killer called again- this time with video and the Chief decided to accept such a terrible request which led to Ko Moo Won’s murder being broadcasted live. And finally it was Hong Ju who actually pulled the plug when the Chief didn’t mind airing Moo Chi’s grief after the murder.

SR Jun 18 2021 1:25 am Mouse is absolutely amazing. When I watched a few episodes, I thought this was too predictable, but I found myself underestimating it. It's not predictable at all. I feel sorry for Yo-Han, she was misunderstood by the whole world even the audience misunderstood her?. But I also feel sorry for Ba-Rem, her wish finally came true to not become a monster but now it doesn't change anything. Although I was expecting a lot of relationship on Ba-Rem and Bong-Yi, this is really sad.

Priyam Jun 14 2021 4:49 pm This drama deserves a lot more!! It's like revolution in the kdrama industry where the hero has to be someone who's a pure white or maybe a little Grey because of situations or they're somehow understandable. SPOILER!!!

The ML was the serial killer which is the total black concept & quite different from we usually encounter & the plot was very well written (although it was a little less explained in many situations) & it even made us pity& somehow empathize with the ML even if he doesn't deserved it, showing an emotional captivation by the drama to its audience. This is surely one of my favorite thriller kdrama storylines because it's so unexpected at times that I had to watch multiple times wacking my brain to connect the plot for different characters.

If you still are in dilemma to watch this or not, believe me & Watch It Now!! Like RN!!

another stranger Jun 12 2021 2:51 am finally could end this amazing drama. the plot was so great. so many psycopath/thriller drama with a plot that we can guess. but this drama in another level. thanks writer-nim also the PD-nim and all the staffs. i enjoy the drama very well.

anyway i watched while still on going and really love the commenters of the drama in this site. idk but like they know everything. not got spoiled from another place but spoiled by the all the thoughtful people here. so appreciate that. the theories were awesome guys. and in the end, all got the answers.

(SPOILER ALERT START HERE) eventho i felt a lil bit dissapointed for bareum's real mom suicide. and there's no mom and son momments of bareum and his mom. like why? and he killed his own dad. like why? in the end bareum's life was so tragic. he was so poor and pitty. he got no one with him. he deserve it actually but still that was so sad. i really want to hug the little bareum so bad. if everyone around him doesn't treat him like a monster, im sure he'll never be a monster, he'll be lived like yohan. maybe that could be happen.. i think.

idk but this drama really touch my heart. psycopath doesnt just became a psycopath themselves just because they had gene's or whatever. but psychopath could happen because the people around them. i mean from this drama's lesson lol

after all, this gonna be one of my thriller drama i loved. Must Watch At All Cost (8,5 or 9/10)

I like it, but... Jun 11 2021 12:53 pm @xiao333 I've watched till the end, and I've watched The Predator (special eps) as well. But there is still no explanation. So I think the broadcast was delayed but the boss decided that he wanted to broadcast the Sherlock HongJu again? All of a sudden? I still don't understand and confused with that episode

Kdrama fan Jun 11 2021 6:26 am Thumbs up for the complexity of the plot by the writer. I was a bit lost especially on the tie knot murders etc.

LSG really acted well. This should be his best works so far. 'Mu Chi' and 'Bong Gi' acted v well too.

Ending was so heartbreaking and I was shedding tears for YH and BR.

Isha Jun 07 2021 10:53 am One of the Best Korean drama I have ever watched.noone can beat this drama. If this drama don't receive award than I swear I will never watch any kdrama in my life.

Xiao333 Jun 07 2021 8:27 am @I like it, but... Just watch until the end. Because they will explain later on what really happened and you will understand. Telling you now it would be just too long and hard to unterstand and spoil too many things. Plot twist over plot twist, you will get it after watching until the end. :)

I like it, but... Jun 06 2021 11:43 am Until now I still don't understand the sequence of events in episode 5 (when Moo Won got murdered in a live-stream). The Sherlock HongJu broadcast is delayed and stopped because the boss received so many complaints from the viewers after they found out that HanKook's video is fake, but then it aired again with full-crews and keep airing until MooWon got murdered. I know the series has ended but I still somehow need an explanation for this episode? Haha. I like the series anyway

Xiao33 Jun 06 2021 8:33 am @iiidolo I don't get your comment? What question? I don't have any questions, I just comment on one other comment. I did not talk about the mouse in the beginning with the snake. I just talked about the mouse in the end (AFTER episode 20!!!), so why are you asking a question about the mouse with the snake? The mouse (probably Choi Hong Ju stepped on it) could be another mouse and not the mouse in the cave. Sorry your comment is so hard to understand. Why should head hunter made a mistake? Daniel Lee thought the mouse was dead and threw it away and said his brain transplant was a failure, but he didn't know the mouse was not in the cave anymore (could be alive). If it's alive then the transplant was a success. It is just an open ending so if there is a season 2, it will open a new story, but I doubt there will be a season 2 with the same cast.

haera Jun 05 2021 12:06 pm Is no one gonna point out how unfair is it for Yohan? Literally I’m crying for him. He shouldn’t have died. He was the hero for me TT brb still crying

iiidolo Jun 04 2021 2:37 pm @xioa3 the question is how Ba reum got the mouse and use it to fight the snake I know the mouse is approaching to him but how did the mouse become comfortable to him just like the prison scene where in the head hunter hold a mouse and show it to Ba Reum..

While about the last 9 minute mark on episode 20.5 it tells to us that Head hunter probably make a mistake in applying the brain transplant.

While the people who asking about if the mouse still alive after it left on the box, as you notice it is already dead after the mystery girl "Hong Ju" who step the mouse. "The MG is not a nobody or just a appearance character she is Hong Ju remember "ba reum is on her Mom womb when she abduct meaning they have a age gap of elematary and high school ages when they are meet for the first time.

While why hong ju step the mouse, probably she is aware about the behavior of the mouse since she become a bait by the head hunter to ge more brain meaning shebjs witness about the experience of the mouse. Because of that she notice the behavior of the rat that mystery boy "Ba reum" hold, she give a warning to him that he will become like the mouse if he continues accompany the mouse. But how they are meet, since the scene is a field trip probably Ba reum and Hong Ju have a same date when the field trip happened.

"On their first meet Hong Ju(MG) and Ba reum(MB) they are not aware to one another so stop thinking that they know each other already in the since where Hong Ju step the rat."

On the last scene of ep 20 probably the scene is to test the faith of a person towards to Almighty. Since Ba Reum did not believe to him because the Almighty did not guaranteed his prayer he becomes more violent result at the same time because of the incident happened to the family of Yo han it add more fuel that triggers here killing instincts. However because of being unfaithful and wants to become more above to Almighty Moo chi stated the probably the painful experience happened to Ba Reum is the punishment if you want to Challenge The God

Still for me I am totally confused

How the rat approach to him*
Does the brain transplant are failed*
What happened to the other mouse who escape*
Is their a season 2 since the Grand child of current president have psychopath disease or genetics*

Cain Jun 04 2021 12:13 am ENDING EXPLAINATION

Originally, there was only one ending. However, since the show is a hit, they have added another alternate ending.

The alternate ending is where the mouse survived indicating Bareum would come back to live.

Trad_Factor Jun 03 2021 9:05 pm One of the best dramas that ever came out recently. Watching this show is like walking into a beautiful forest and get lost midway but coming out amazed and contended. Complex but detailed plots at the same time. Kudos to writer, cast and production teams. Serious contender for best drama and best actor awards. Lee Seung-gi at his best performance!

Faye May 31 2021 1:51 am How I wish they will make a remake of Dexter an american tv series. i'm curious how they will deliver this story in korean way. though dexter is a sociopath not psychopath like bareum

Ricci May 27 2021 8:54 pm Interview was fun. Lee seung gi was right about joo jae yun's acting. Can't imagine acting on a phone not knowing who you are talking to. It would have been easier to act if you knew who you are talking to. It was really funny that joo jae yun only realized who he was talking to on the phone when the show was about to finish. Hahaha.

Xiao3 May 27 2021 2:20 pm (Spoilers) @rosario The mouse is alive. Did you watch the interview? There is a special episode after episode 20 where they all got interviewed and they showed another second ending where you can see the president giving orders to kill Choi and see his granddaughter. Daniel threw the mouse away, but then they showed the cave again and it was open and no mouse found. So the possibility that the mouse is still alive is high.

Wew May 27 2021 7:46 am @rosario yes thats exactly what I comment earlier, if you scroll more,I already assume that mystery girl was choi hongju but many suggest that she was nobobdy and I assume that the girl was really nobody.

Syahirahbasir24 May 27 2021 6:12 am I just to say this is the best kdrama I've ever seen in my life.. Its blow my mind.. And the plot twist is insane... That's crazy... I never seen kdrama like Mouse.. Its very very different.. I love the director and writer.. Thanks you very to make this drama.. I really love it.. And the cast is powerful.. I never expected that jung bareum is the real psikopat.. Look how this drama Manipulating us as viewers.. I just want to say that this kdrama Mouse should win The Best Drama Award.. And award for the director and the writer.. In this drama I really like Lee hee-Jun acting.. He should win an award through this drama... I'll always remember this Kdrama 'Mouse' forever in my heart... Again I would like to thank you for publishing this Kdrama.i really really like it.. ❤️

Mg May 26 2021 9:04 am Who is the girl step on that mouse. We need season 2

rosario May 26 2021 7:41 am @Wew @Kd the mystery girl is Choi Hong Ju because she was a little girl when Ba reum was still in the womb so when he is in elementary school she would be in high school which can be seen from the uniform. also Hong Ju was the only 'kid/child' that knew about the transplant.

@Tejal i dont think he rat coming back to life, however when Daniel received the parcel there was initially 2 rats and 1 jumped out, so i think the one that died actually died and the one that jumped out and exit the lab was super active which would explain how it was able to kill the snake.

Mouse May 25 2021 7:14 pm I actually love the show. You guys saying that the plot is ridiculous are the ridiculous ones. The genre clearly said sci-fi which fully means scientific fiction. It is Fiction. You guys love dramas about zombies, shapeshifters, time travelling, being in a comic book but a drama about brain transplant is ridiculous. This show is different and I love it for that. Some of the comments are saying it’s not realistic yet a drama about zombies is. No hate to the other dramas with plots like that’s cause some of them are my top dramas but the hate this drama and the writer is getting is annoying. This drama was well thought of and there was not a single plot hole that hasn’t been explained. If you don’t like the drama leave instead of insulting it

kayla May 25 2021 3:07 pm @Kd, lol does that even make sense, I'm trying to explain as thoroughly as possible, not every character around the main character are going to be significant to the story

kayla May 25 2021 3:02 pm @Kd, if you scroll down in the comments you will see that a lot of commenters has already answered and explained the situation of your question, the girl isn't even really relevant to the story, however, she is there to kinda explain what the plot is going to be about. She is just a random girl they used to show the main character that she thinks that specific mouse shouldn't have lived because it was agressive towards the snake and possibly hurt it which is not really normal for a mouse to act out like that since mice are considered prey to snakes. This basically connects to the story since it's about being a predator right? the mouse, as explained below would represent a psychopath because it isn't like normal mice, they have a different kind of gene. It was seen as the prey just like how JBR was seen as a nice man.

Kd May 25 2021 12:14 pm I still can't understand. Who is the young girl who step on the mouse?

Jennie May 25 2021 12:01 pm I love all the 4 main leads performance. No hate for them. They played their roles very emotionally.Lee hee joon didn't exaggarete his character he did what should have been done. Park ju hyun is truly gem, I didn't watch extracurricular but I understand totally why she won baeksang she has a great future. Kyun soo jin also made her role very appealing so believable I like it. Lee seung gi... Just powerhouse no words. His Acting Is Masterpiece.

Miley May 25 2021 11:55 am @Claudia I totally agree with u. All of them acted sincerely and professionally. If u are irritated by their actions in the mouse, it's not their fault. They just played what was written in the script. Both Lee hee joon and Park ju hyun acted very well. Because they also nominated for baeksang. Park ju hyun's character may be difficult to understand cauz she went through many awful things since her childhood and I guess she's truly shined in this drama. Lee hee joon also acted powerfully emotionally. Good job

Claudia May 25 2021 11:49 am Sorry, but I truly can't understand why some people try to backlash other 3 actors except Lee Seung gi. I know LSG did perfect job his acting is mind blowing, better than Lee min ho who selects nearly the same roles. He's inborn talented cauz even I can't hate him. But, guys, try to take other 3main leads hardwork into consideration. They all of them did great job better than some idols who can't show their emotions

Mouse May 25 2021 6:51 am Not everyone who has Antisocial Personality Disorder (psychopath or sociopath) turns into a killer. There is a prejudice that needs to be highlighted

Mouse May 25 2021 6:32 am If you like the beginning of the drama, but you're disappointed as the drama gets more episodes.. Probably, you need to make a drama yourself. The highlight is there are many factors that make someone a psychopath, psycho gene only 30% influences a kid's behavior but there is wrong "nurturing" way that turns kids into a psycho as they grow up. The drama wants to put a highlight on that point. Aside from that, I think the writer needs to do more research on psychopaths and how they differ from sociopaths.

potata May 25 2021 3:41 am I'm currently at the beginning of episode 17 or almost at the end of the drama. When I started watching this, it actually has a promising beginning, I even thought that it's better than Beyond Evil. But I don't know when it started to fall. I mean, not really fall because it's good it's just a mess... like my comment. Anyway, there was a part in the drama that celebrates the murder of the murderer by a psychopath killer which I thought was a mad sick (not a compliment). Lol, my mind is in rambles, I don't even know if this is the after-effects of watching this or I fit the target audience of the producers. Also, I want to include in this rant that Go Mu-Chi's character is a disappointment, the MF is annoyingly immature throughout the 17 episodes of this drama I watched. But the actor is good he played his character well. Hahahahahahahahahaha

HV May 24 2021 2:37 am Interesting and unpredictable plot. Messy storyline. Very messy writing. The characters were not so likable. Although full of layers and complexities, the Bareum’s character, portrayed by Lee Seung Gi was somehow 60% to 40% convincing; in terms of transitioning between a psychopathic persona into a more repenting persona (Again, sorry Lee Seung Gi).

My only and most favorite character in this psychological thriller had to be the young Bareum, portrayed by the young talented Kim Kang-hoon. This kid-actor totally stole the show for me... He was 100% convincing in his performance and in his screen-delivery. I have had Kim Kang-hoon on my radar since Mr. Sunshine and he has not disappointed me in any of his projects, ever since.

Ben May 23 2021 9:53 pm @Lee me too... Even though Bong yi told him that he cursed him until her death, she actually had feelings that's why she couldn't forgive him. So sad love story

Lee May 23 2021 9:50 pm SPOILERS. My heart so ached watching mouse because it so sad that baerum didn't feel anything like regret or sypmathy until his surgery but after that he had to live in regret for the rest of life. I felt so bad and cried much when Bong yi and Baerum met the last time in prison he really loved her and she also. Heartbroken couple?

zeeshan May 23 2021 6:44 pm it is really amazing drama. i was almost stuck with 50 inch screen

Chris May 23 2021 11:21 am Does this ending mean a season 2....!!!!!??? if the rat was still alive... then Jung Bareum.....

Xiao2 May 23 2021 7:52 am @chesstitans

No girl. Didn't you watch the interview? There was a second ending and they showed how the president pardoned her and he was the one giving orders to kill her. Only that makes sense for the storyline. Just watched the episode after they were done with their interview then you will understand.

Zhan May 23 2021 3:42 am @DDD: Jae Min is dead. In one episode they showed how his family got murdered. He helped his sister so she can go out and flee and then Song Soo Ho came back, because he wanted to clean the place so Jae Min couldn't flee and hid in the closet. Soo Ho burned down the house (he didn't know someone was in the closet) so in the second episode or so there were 3 corpses (yohan's real mom, her husband and jae min).

@F: No, they didn't show anything.

DDD May 22 2021 3:50 pm Btw where's Jaemin? Is he dead? it looks like I missed it or forgot it because there were too many characters.

Tejal May 22 2021 8:53 am The surgery of the brain transplant is not a failure. You will see that in ep 20.5 last scene. The rat which Daniel threw out in the sewage comes back to life.

F May 21 2021 3:33 pm Can anyone tell me if Hong Ju punished the nanny who abused her son? In EP 15 she placed cameras around the house after she saw the bruises on her son's body, arms, etc.

Wew May 21 2021 1:27 pm (SPOILERS) @Song The yellow raincoat kid is not head hunter it was jung bareum (headhunter's son) and the mystery girl is just nobody...choi young shin already old when jung bareum even in fetus.lol

tf May 21 2021 6:22 am @awoosh @h i think the last scene is a special cameo

Aaaaa May 21 2021 2:32 am @justsomebody. I agree with you but keep in mind that it’s people with 99% psychopath gene. What we usually call psychopath is people with tendancies. But I agree, specially after this experimentation, the output of it is 50% are genius and 50% can become a serial killer ( and even so it’s only a possibility as they tried really to make him a murderer and maybe with a better environment he would never had kill). But with the abortion law we will be killing all the genius too, like doctor Lee. What is a bit of a crime against humanity. But it make sens people are voting for the abortion law as people are mostly driven by fear. But as a concept I am personally for the Head Hunter progress ( it could be so useful to treat psychopaths ) , that Doctor Lee who wants to kill psychopaths. Treat or kill. This is why this drama is so good, such interesting topic

justsomebody May 21 2021 2:11 am the writer has few knowledge abouth psychopath. not all psycopath became serial killer. why should we abort unborn child when we find out that he had a psychopath gene. its like killing your unborn child because he had autism.you are no different from a murderer.

rosario May 21 2021 12:01 am I think the mystery boy is Ba-Reum and the mystery girl is Hong-Ju. Only Hong-Ju knows about the rat having brain transplants by Seo-Joon because she recorded him doing brain transplants on rats. Therefore, when she said something about the rat having a nasty brain in it, its probably referring to the plot of the story but also to the many rats that Seo-Joon did the brain transplant. Also, if you consider their age it makes sense. Before Seo-Joon went to jail, Ba-reum was still in the womb whereas Hong-Ju was a little girl. This meant that Hong-Ju is older than Ba-reum. And in the snake and rat scene, the mystery girl is older than the mystery boy.

The question is where did that rat came from. Seo-Joon sent two rats to Daniel Lee to show him that he had succeeded in the brain transplants of the two rats. But remember when one out of the 2 rats jumped out of the box. Ba-reum (as the boy in yellow) saw the rat and took it.

Also, im pretty sure somewhere in the drama, it was indicating that Ba-reum is the mystery boy when he was having flashbacks of his memory after the surgery where he thought that piece of memory belonged to Yohan but it was actually Ba-reums.

Eskimo May 20 2021 10:56 pm This series is an examplar of a scriptwriter who starts a story knowing very well where it is going and how to end it. It's incredible the amount of foresight the writer had and all the details that were set up in the early episodes that are only paid off towards the last few. Yes, the story can be a little convoluted at times and characters do questionably stupid things but that's Kdramas for you anyway. Really appreciate the amount of work put into writing this extraordinary piece with very obvious homage to classic Korean crime films like Memories of Murder and I Saw The Devil.

Typical007 May 20 2021 9:25 pm They forgot about the dog!!!

Quekekee May 20 2021 5:13 pm Btw, who watch the epilog? The scene where there's someone who do the exact surgery as head hunter's..it could be 2 possibilities; turning predator into someone good or vice versa..what most important, the surgery will fail anyway

Anasazi May 20 2021 3:40 pm I thought this drama was going to be awesome because of Lee Seung-Gi as the main character but it was confusing and terrible. The detective, girlfriend, and reporter were terrible, rude, and irritating. I wish the drama would've been a lot better and also I wish the acting would've been better. Except for Lee Seung-Gi the other 3 over acted. I give this a rating of 2.

Anita May 20 2021 2:16 pm As thrillers go, this was really it!!!!! I celebrate the amazing actors n the crew behind the scenes....the killings not withstanding, I enjoyed this drama. Thank u 4 the fantastic show of talent, skill n brilliance ?

Song May 20 2021 1:09 pm I’m pretty sure by the story that the yellow raincoat kid is head hunter and the girl is Choi Young-Shin. He was already obsessed with mouse and Choi Young-Shin Want to eradicate killers

mouse May 20 2021 11:10 am People hate on characters (Choi Hong Ju) for the pettiest reasons...

ki May 20 2021 11:07 am Lee Seung Gi omfg... he conveyed the emotions so well and his facial expressions were done perfectly, that one scene where he told Bong Yi he would be born as a normal person in his next life literally broke my heart, I couldn't stop replaying it. He and Lee Hee Jun really deserve an award for this show. I really loved this drama and recommend it to anyone who is looking for a good crime/thriller to watch. It is confusing at first but they explain everything from the past and current events pretty well at the end.

m May 20 2021 10:56 am the mystery kids really don't matter, I don't understand why a lot of people are trying to figure out who the girl is lol. I'm pretty sure they already revealed that the mystery boy was Jae min and the mystery girl was just someone who was there to show us and the main character that the mouse shouldn't live because it wasn't normal since she asked why the boy would let the mouse live after he saw what it did to the snake, kinda connects to what the plot is about, trying to get rid of psychopaths.

Aaaa May 20 2021 10:50 am This is so far one of the best kdrama I’ve watched. There is no plot hole what is rare for a complicated story. Very rare. Amazing acting and all the characters are honest without being overdramatised. The unfolding of the story is harmonious, no rush at the end. It’s feels so smooth ( the second part of most drama are a bit frustrating, irrational twists or overdramatic ; this I like one of the very few drama that I truly enjoyed until the end. I am so grateful). On top of that the topic is so interesting. Trying to understand a psychopath and giving him a chance to be normal touched me much more than some other cheesy topic we usually see. This drama is to me a bit of a miracle, everything is so perfect and I’m very grateful.

Flash disk May 20 2021 10:25 am Last operation scene i think related to flash disk finding from the doctor's workplace. Because the operating doctor saw the video record while he is doing operation. They tried to continue the brain transplantation to cure people. I think that's the message..

Ivan May 20 2021 9:52 am Superv!

Candy May 20 2021 9:05 am The best criminal drama so far. Each episodes more than 1 hour but i never get bored watching it. And yes i got really sad watching the last episode too.

Skrtt May 20 2021 8:30 am There are 2 kids that still mistery, i am curious about this

B May 20 2021 7:38 am Even as a psychopath killer, I felt for Lee Seung Gi once again. After this, there is not a character that he can't portray. Bravo!

Wew May 20 2021 7:26 am For those who are asking about the guy who got the operation..i personally think that the guy was another guy in the city who got to have the brain transplant but however, im bery curious why writer put the scene maybe want to tell us that guy has something to do with the brain such as maybe he got jung bareum's brain since he dead already or must be someone who still want to further the experiment onto predators which make the guy as subject and predator's brain as well...you will never know wht the writer's idea actually..the scene may be to trick us trough positive way such as the brain transplant could be further in medical surgery or there was something left behind.

chesstitans May 20 2021 7:14 am @Who is shin sang actually

Kang woo chul is a psychopath, not a predator. Since he does not live stream his murder, and his killing is too silent ( he even disguises his murder as robbery or suicide ), it is not enough to enrage the public so that the bill of abortion can be passed. Also, Kang Woo Chul arealdy awakes his instinct of kill at early age, but he is able to conceal his true color.

If Oz kills Dr Lee ONE MORE TIME, the police, especiall MoChi will raise doubts about the past case.

Can I ask you in which episode, the reporter interviews the ex-judge ?

@Xiao No, I am afraid that Choi Young Shin is killed by a closed acquaintance of a deceased OZ member as a retaliation. Like father like son, both the president and his son are affable and kind-hearted. The president is unlikely to break the law for his personal gain.

@sf You are the one who does not understand a thing of the script. Let's go over each confusing point.

if MoChi carries out his revenge, what is the point of forgiveness from his older brother ?

For the babies switch, in the drama, the mother say "they are afraid that their kids will grow up to become a monster". To have a fair observation and to be able to kill the son decisively, the mother switch babies. Apparently, the mothers have motives to do so. They witness the child who has the psychopath gene kills his own mother.

Think of this way. If scientists announce that they can tell which kid has psychopath gene, what the government or the family should do ? One simple thought is to persuade the mother to give up her child to the government. This is similar to what happens in the drama.

What the reporter does makes sense to me.

Uli May 20 2021 7:12 am I was literally crying for the last episode..... the acting huhuhuuuu OMG everyone did a good job.

May May 20 2021 5:50 am Very nice kdrama. If there is an award again for best actor Lee Seung gi will win. One of tge best kdrama after watching Beyond Evil. Nice story, casting and very exciting. I highly recommend to watch. Congratulations to Lee Seung gi, Lee He jun and to all the cast. Job Well Done.

Aaz May 20 2021 4:34 am This is so far The Best 2021 kdrama for me, good writing, good plot twist and the actors really did a good job especially lee seunggi, his acting skill is no joke? and i cried like a baby on the last ep too? ughhh i cant move on from this drama

sf May 20 2021 4:21 am For instigation to murder and all the rest, the reporter was sentenced only to 3 years in prison. I would have given her ten years in prison. I have always hated this person and at the end of the drama, I hate her more. All in all, it was a good drama, but the script was much too complicated for no reason. Except for Mu-chi and Bong-Yi, this drama was full of guilty people some of them were not even punished, for example, Dr Lee. The stars of this drama were, without any doubt, the actors, Lee Hee-Jun and Lee Seung-Gi. I'm sure now Choi Jin-Hyuk regrets he didn't accept, so-called, the second lead role.

me May 20 2021 4:01 am i was crying my @$$ off with the last episode ... everybody was acting so good .. specially lee Seung GI ..

sh May 20 2021 3:51 am The guy getting brain operation at the very end (ep 20, credit ending scene) was idol Kim Yohan, member of boygroup WEI. He only appeared as a cameo, and has no any connections to the story in the previous episodes.

A Fan May 20 2021 3:00 am

S P O I L E R *

First, this is such a turning point in LSG's acting career. He portrayed Jung BaReum so well. He took acting class just so he can understand the role. Even when he became a hideous psychopath, he makes me scared and amazed so much. I wasn't even his fan, I was just interested because of the genre. I streamed the last episode last night, and I was about to cry. Second, the ending is weird and just got me thinking "who is that boy who got operated?" This is not a kind of drama where police are busy hunting psychopaths, but this explains that many factors make someone a psychopath. Despite its flaws, I'd like to give this drama 8,7 / 10. It is really worth it. If you haven't finished watching it, I suggest you continue watching. The 5 last episodes explained the story a lot and will leave you with satisying feeling

Bongyi Halmeoni May 20 2021 2:54 am Wowww good job for all the cast and people who work behind this drama. Definitely one of the best crime/thriller dramas I have ever watched. The ending tho, who is that? Doesn't look like Yohan but somehow I think it is Yohan. It shows that after the brain was harvested, the man (patient) was still alive as shown on the heart rate monitor. Omg if it was really Yohan, thank you writernim! Justice for Yohan!

Ice May 20 2021 1:50 am Really curious though. Who's the mysterious girl written in the profile above??

Xiao May 20 2021 1:21 am (SPOILERS!!!!) For those who are asking who killed Choi Young Shin.

Well, probably the president! Remember his son was killed? After 3 years in prison the president pardoned her, so he can kill her to get revenge.

who is heeee May 20 2021 12:57 am who is the guy at the end??? I even tilt my head lol and idk

Kurniawan May 20 2021 12:36 am SPOILERS. They stated that the production team will release another version of the ending on thursday' night. Wow, the really did really best for us to choose our choice for the ending.

Anyway is Choi Young Shin really a predator? I think she just a normal person but crazy. And is she killed at the end? Who is the person who killed her? Is he Han Seo Joon?

And the last part, i think it was Han seo jun who in the operating room. Just learned from Penthouse, i wont believe they dead until they show the body ?.

Cj May 20 2021 12:09 am This drama is so good that the plot and the story would really capture you and not want to miss each and every episode. The actors portray their characters very well, especially Lee seungi and Lee Heejoon. I can say that this is the best drama that I've ever seen. This drama will make you cry, sad, happy, thrilled and scared. I really thank the people whose involved in making this drama. To the director, writer, staffs, actors and actresses thank you very much in making this masterpiece. To those who haven't watched it, please watched it. This drama will never fail to amaze you.

Khair May 19 2021 11:51 pm One of the best crime kdrama I've ver watched.

10/10

The story, the finishing wow me so much

"Regret is the most painful weapon to kill an evil murderer"

I like Signal, Tunnel, Voice 1 and now Mouse is one of them Bravoooo

sue May 19 2021 11:43 pm who was it on the operating table at the end of ep 20??? Whose face??? it looks like dr daniel was the one operating.

jamie May 19 2021 11:24 pm Besides the weird post-credit scene at the end, the last episode was pretty good in my opinion. Lee Seung Gi's acting was amazing, especially his raw crying scenes. I really liked the part where he talked to Jae min and I couldn't help feeling sad for him, it was a very bittersweet ending. You really do need to watch till the end to know what's going on behind everything and what the OZ organization is for even tho it was a bit confusing first. Overall, this show didn't disappoint me at all, very good job to the whole cast and crew!

huh May 19 2021 11:07 pm tf was with the extra scene at the end?

awoosh May 19 2021 10:40 pm @tf and @h omg guys your right 0_0 who is that guy ???? did they took yohan brain and put it in other guy brain and not to jung bo ram ?????

Pedro Souza May 19 2021 10:37 pm Pay attention to the video being played on the tablet during the surgery at the end. That isn't Ba Reums surgery, that is the surgery that Head Hunter created being used in the future.

h May 19 2021 8:26 pm at the end, his face looks like kim yohan, is it another plot twist?

Leekimah May 19 2021 8:08 pm [Contains spoilers] Who was that at the end? 1:40:30?

Kim Na Na May 19 2021 5:22 pm Wow! The first episode was a bit off for me. I didn't concentrate that much of the old time stories, but omg this drama! Worth watching!!!! The first few episodes were kinda scary, I had to watch it with lights on haha. But how it's written and the connection, everything made sense. Even tho I normally don't like things that connect higher-ups or politicians or the government at the end, but this is so well made. And I cried sooo much during the last episode, It doesn't happen often with crime dramas. Actors, plot, everything Wow!

Natalie ch May 19 2021 2:15 pm No doubt Choi Ran is the best thrilling genre writer!!! I always love her drama like Black and God's gift 14 days. And now Mouse is really awesome!! All the actor fits well in character, especially Lee Heejun and Lee Seunggi. The two are really great actors! Mouse is the best drama for me!! Really like the storyline and all the plot twists. Thank you for making this drama.

lyd May 19 2021 9:14 am When is episode 20 goin to be out

Ebeb May 18 2021 10:26 pm this is one of the best shocking plot twist ever

Sick of stupid SCRIPTWRITING May 18 2021 6:57 am This drama is like spaghetti cooked with 1000 different sauces just because. At the end it's shite. Incompetent scriptwriters going haywire with unbelievable storyline because they just can't think of laser sharp clever one. Move on.

r t May 17 2021 12:30 pm This drama is most thrilling drama I ever watch and deserve an award for the plots. Bravo to Lee Seung Gi and Gu Mo Chi . This drama will remain in my best drama list ever.

Melissa May 17 2021 6:40 am It's almost end....I'm gonna miss Seung Gi Oppa.?

Fiona May 15 2021 7:56 pm Oh yes, I know he lost his memory/ amnesia. Just that he looks so different as I did not intend to watch the special to let the story flow. In the end, I decided to watch and totally took me off guard for a second. Thanks for your respond. I should not comment about that ?

Grrr May 15 2021 5:22 pm @Fiona Wong

Did you watched all the episodes that aired already? If you watched it then its not weird..mybe i misundertsand wht you are writing but since i take it under my version, he was shocked because after the incident with yohan, he totally having dissociative amnesia, means that he does not remember who he is and this sickness just make your important memory to lose and his instinct sometimes still the same. The rumour around people saying tht he was almost be killed by yohan thats why he believe he was nit the killer nd was so shocked when found out tht he actually was.

Cupita May 15 2021 3:48 pm @Fiona Wong, Really? Did you really watch the drama? After incident with Yohan, Bareum get memory lost for one year. Before the incident he just a pure psycopath and now with some part yohan brain transplanted to his brain, he got feel emotion. Thats way he said to dr lee that he rather die than feel guilty about his past wrongdoing. He didnt expect feel guilty is really painful for him.

Webe May 15 2021 6:57 am Oh I Just forgot about dr Daniel Lee's little brother..when he will appear...im waiting

LEE May 15 2021 2:58 am To be honest this started of as interesting but then kinda loses it touch towards the end because of the complicated twist that requires other audiences to watch the prequel and the other extra episode to understand it better but the more i watch the prequel/mouse predator episodes the more i get confused because the first few episodes were really yohan's mom who tired to kill JBR as a kid.. it was him.........but then in the prequels it was changed .. woman was changed..

i wish the plot were a little simple thou, because right now this OZ thing is just driving me nuts hahaha

wew May 15 2021 2:26 am @Cupita

oh... I am very sorry..i mistook the scene as shin sang instead it was yohan... I am very sorry, I admit my overlooked mistake.. sorry everyone...lol. Its all because Im watching this while do my job..so I must be miss the scene.

Cupita May 14 2021 9:55 pm @Wew, Shin sang is the son of Shin sung min and not Jaemin. Jaemin already dead, there is scene when bareum remember the past where he saw his house burned and there was three corpses in front of the house. That's why yohan say to michaela there is only him and her left now as family. I dont know where you see the scene shin sang tranfer money to michaela? Its weird i never see that. I only saw song soo ho sometime observe michaela in the church because he feel guilty about her family.

Lurve May 14 2021 9:01 pm Just watced the ep 19. Getting bored coz to many twisted plot and came to end..

Wew May 14 2021 8:13 pm @Whi is shin sang actually

Detective Lee hold onto Detective Shin because he want the laptop.. Remember where he rush going into the office but found detective shin there, he pretend to look normal but he actually want the laptop..if detective shin left the laptop there, he could be alive right now but he suspected detective Lee so thats why he brings along the laptop with him..

@heejon's wife

You are wrong about sung yohan being jaemin...yohan is not jaemin..jaemin is yohan's little brother..jaemin and jaehee is a twin..there was a dialogue about them being a twin..you should rewatch it and also yohan and bareum is the same age so particularly jaemin is not him...i also wonder did jaemin really died in the fire or actually he is detective shinsang because he always transfer money to michaela (jaehee). Why did he do that actually if he was not related to her. I doubt about this.

Momo May 14 2021 4:06 pm the best

hwa woo te amo May 14 2021 4:01 pm Ahhhh, I'm so mad My poor Sung Yo Han he doesn't deserve to die he's not the real killer it's JBR all along

Please I just can't take this anymore after watching the last 5 eps +the special eps.... I really literally cried all along when I found out that Sung Yo Han is fvcking!!! Innocent! and I'm really mad at Head Hunter!!!!! He did the "Brain Surgery" while Sung Yo Han Still Akiveeeee!! He could survive and still be alive right now!!!

Kwon Hwa Woon Always plays supporting roles, guest roles, second lead, damn he's been an actor since 2012! and I've been a fan of his since Scholar Who Walks at Night.... Damn, can you please give him a project where he's the main character!!!!

Kwon Hwa Woon Te amo May 14 2021 3:59 pm Ahhhh, I'm so mad My poor Sung Yo Han he doesn't deserve to die he's not the real killer it's JBR all along

Please I just can't take this anymore after watching the last 5 eps +the special eps.... I really literally cried all along when I found out that Sung Yo Han is fvcking!!! Innocent! and I'm really mad at Head Hunter!!!!! He did the "Brain Surgery" while Sung Yo Han Still Aliveeee!! He could survive and still be alive right now!!!

Kwon Hwa Woon Always plays supporting roles, guest roles, second lead, damn he's been an actor since 2012! and I've been a fan of his since Scholar Who Walks at Night.... Damn, can you please give him a project where he's the main character!!!!

heejoon's wife May 14 2021 12:55 pm (SPOILER ALERT)

— Mo Chi asked Bareum if he was behind all the killings to which Bareum then declined except for the Kang Duk Soo one so obviously Mo Chi started to suspect him until the ep19 wherein he positively thinks Bareum is the killer

— In my personal opinion, Choi Young-Shin aka the woman who begged HSJ to operate on JBM, is behind OZ somehow. I'm still in search for clues but up until now its my theory because ep19 showed Mo Chi going around to find OZ and all locations were near the building Young Shin owned, and why dis JBM go there? We dont know yet

— The moms decided to switch babies because they were deciding on killing the kids when they show psychopathic behavour, i dont understand why thet had to do that but they just did, I would have honestly raide my own child if i were in their shoes

— Sung Yohan is Jaemin and Jaehee's older brother, like i mentioned they got switch(Park Jaehoon and Sung Yohan) which means BAREUM is the REAL SON of HSJ, i really suspected that because of the particular scene when Yohan burned a DNA test

Pam Lane May 14 2021 11:08 am I started watching this yesterday and had a bad nightmare and apparently was screaming in my sleep that woke up my roommate lol I was running for my life hehe Good show and cast tho I will watch til the end lol

Anaa May 14 2021 10:47 am wow all the plot twists during the last 5 eps made me forget all the things happened in the 15 eps earlier ? my brain had a cramp trying to link things.

anyone is kind enough to make a simplified ver of all the characters' relationship? (minus the victims) bcos for me, things starting to get messy when OZ are brought into the timeline.

Janine May 14 2021 10:25 am Wow I just knew JBR was the real son of the killer!

Who is shin sang actually May 14 2021 10:01 am Who is detective shin actually? Isn't he also one who has psychopath gene? Is anyone in SK alwaya left their home unlocked? ?

If kang woo chul is a predator, are OZ should watching him too? Or he just also a member of OZ? Or he undetected by Dr. Lee?

Why Dr. Lee didn't killed by OZ soon after they re find him again? They tried to kill him at amusement park. Does the OZ boss has another plan with him?

Why Hong Ju wants to interview ex KWC's judge?

I think it will be a big surprise plot twist in the end. And all questions arised could be answered..

Btw, i think detective Lee wants to hold det Shin not to come home.. Because he knew that he could be killed. There are something mysterious around this guy.

Grrr May 14 2021 7:02 am @SPOILER

coz they both so dumb...and the nurse also why would she want to raise murderer son..if she was clever she could tell already the percentage of the child to become murder is high unlike her son. If you think logically this was absurd...i hate those kind of mother who tought they are the victims but in fact they are the real killer of their son...so irresponsible...owhhh..i got so mad...my heart is bursting with fire...

SPOILER May 14 2021 4:46 am @Grrr

I think so, too.. Maybe Sung Ji Eun thinks that there's no chance that her baby will grow up normally, unlike HSJ, because she knows that HSJ is a serial-killer. She still has a chance to have a normal baby, like the nurse's son, whose husband didn't show psychopathic behavior. She takes advantage of that condition and dumped her own baby to be taken care by other woman

Grrr May 14 2021 2:34 am Whats the purpose for switching those baby? I think its not make sensa at all... if its happen to me i will raise my own kid and teach him better ..forget about psycopaths gene lets make sure that our kid does not grow brutally villain..thats wht mothers supposed to do...this is so irresponsible of mother i guess..gladly switching child and thus make the child go through all the hardships eventhough its not his fate after all actually...im just so sad that there is no way to make yohan back alive again and he just gone like that as murderer's son even he was not the one..if later his name could be clear but still not the same...

wew May 13 2021 7:38 pm does anybody also think that shin sang might be Jae min?

wew May 13 2021 7:27 pm Wow...so the girl is just a random girl? I dont think so becoz sometimes i thought the girl was park hyun soo or choi hongju in middle school. Or she could be someone in the OZ organization because she knew everything about the mice had operation on its brain. so she could be one of them right. I personally think she is someone that will appear last and if not mention about her identity at all, writer do need explain to this.

Asa May 13 2021 7:24 pm SPOILER!

I think the 2 moms decided to switch them becouse it will be hard to kill their own child. So they promise each other to kill each other's son if later they show psychopathic behaviour

Asa May 13 2021 7:19 pm I think the 2 moms decided to switch them because it will be hard to kill your own child. So the moms promised to kill each other'son later if they show psycopathic behaviour

claire May 13 2021 6:31 pm @Pammy, the girl could just be a random girl who was there to remind the boy that this specific mouse he had shouldn't live since the mouse seemed to have some kind of dysfunctional gene because it appeared aggressive when it was put into the same space as the snake which ya know, isn't normal cuz snakes are supposed to be a predator to mice. She asked the boy why he would let the mouse live knowing what it did to the snake, so I assume the mouse killed the snake or something. Maybe in a way, the mouse probably represents a psychopath idk lol.

kayla May 13 2021 6:20 pm @Pammy, I feel like she was just a random girl teaching him a lesson, and tbh I don't really think she's that important but ofc I could be wrong.

Before the mystery girl stepped on the mouse, she was asking the boy why he would want to keep the mouse alive knowing what the mouse had done to the rat snake, I think the snake got hurt or possibly killed by the mouse? I'm not sure. The mouse probably had some kind of dysfunctional gene since it appeared aggressive when it was put into the same space as the snake and since a snake is supposed to be the predator to mice, the mouse could represent a psychopath? lol does that even make sense? anyway, so maybe she was just there to remind him in a way that psychopaths don't deserve to live or something since this show is kinda about determining a psychopath before birth from their genes and stuff.

joy May 13 2021 5:51 pm Spoiler

I thought it was kinda obvious JBR was actually Jaehoon and he was the real son of HSJ, I mean just the way they made SYH seem really suspicious from the beginning kinda gave me a feeling he wasn't really the killer or the real son, as for the mystery girl,@Pammy, I don't think shes really important? she might just be a random person who was having a bad day and felt the need to kill the mouse to show the kid and teach him a lesson or something idek.

js May 13 2021 5:32 pm SPOILER:

lol guys, the reason Sung Yohan is close to Michaela aka Jae hee is because she is his real sister or rather his half-sibling since his birth mom remarried. The mom who most of us thought was Bareum's mom was actually Sung Yohan's mom and Jung Bareum is the real son of Han Seojun since they were switched at birth. Though, I'm kinda confused on why both moms decided to switch their kids? also poor Shin Sang...

Nirmala May 13 2021 3:26 pm S

All the mindless fellows, shin sang is not the killer.

Pammy May 13 2021 2:02 pm Who is a mystery girl who stomps a mouse in EP 8 ? @_@

Jinny May 13 2021 11:08 am Also I thought SYH and JBR are brothers, idk why I thought that, but seems like I was right? Like he is also a son of HSJ?

Jinny May 13 2021 11:02 am I reaaaaally love this drama. And my assumption was right from the beginning. I knew JBR was the killer from the first moment. I knew it was acting. So SeungGi played his role so well. But same for Kwon Ha-Woon. I don't think you have to pay attention to every Detail because when you watch it you just know? It's no that hard and I don't understand why everyone is confused or is saying 20 episodes are too many. This will be my favorite Kdrama. I hope they still explain how the reporter got kindnapped and why she doesnt try to go back to her parents. Maybe she thinks they are dead?

I AM LOST May 13 2021 7:20 am I'm confused and get lost...

Too many names and plot twist which beyond of human sense. It really is twisty twister cheese @_@ i'm go moo chi who is madly angwy bcs don't get the answer even though i follow tge story.

The childhood part from recent episode Yohan was the unknown friend that like to follow Bareum back then right? So how did he know Bareum sister and become so close like real sibling? ? Did i miss something important while watching? ?

Nisa May 13 2021 7:17 am All this time i thought JBR is HSJ son cause theres theories being said JBR have been switched with Yohan.. but its like im totally wrong here..

chesstitans May 13 2021 5:14 am @sf

Daniel Lee already admitted that he was wrong about SH. Clearly, SH is 1%, and it means that SH is a genius, not psychopath.

You really need to pay attention to details in this drama, to check whether all details can add up.

sf May 13 2021 2:56 am Spoiler, maybe.

A conclusion from the eighteen episodes is that an extreme experience in its life, an inactive psychopath can become active. JBR killed Soo-Ho because he killed JB's parents, and Yohan tried to kill JBR for killing his friend. So, there are no differences between them. What we will never know is, what would have YH done further if he hadn't died? Would he continued to kill or not?

Next, the writer should explain why that reporter (whom I hate with all my heart) doesn't return to her family?

Candy May 13 2021 1:29 am This is amazinggg, i love the plot, never gets boring. 1 and a half hour gone by so fastt

boran May 13 2021 1:04 am they have to resort to two ghosts and one autistic girl with photographic memory to explain the story, desparatea little maybe. this drama just gets better by the episode - if they extend the drama to thirty eps..can hear the hollywood oscar nomination

demi May 13 2021 12:40 am this type of drama should only be be done at max of 12 episode prolonging to 20 with to many scenarios has become ridiculous. The approach of Stranger season 1 & 2 has more sense because the continuity of the storyline is building up is the episode progresses and left you to more satisfying viewing along the way

Mouse was good till episode 6 what got on the way is the implantation of Yohan brain to Ba-reum. Which is ridiculous their is no such thing as brain transplant anywhere in the world except maybe in the horror film..It would have been better Ba-reum brain is healed too the course of medicine . Why put Yohan brain in Ba-reum when the story in the latter part she was the daughter of Jenifer the sister of Dr . Daniel and the head hunter... Its ridiculous having a part of Yohan brain & also having the genes of Head hunter . Now this laughable ... im

Cain May 12 2021 10:57 am When it comes to thriller drama like this, I always join along in the investigation: write down own note.

Trust me, you will miss and get confused if you don't pay attention to every scenes.

Sometimes, just because 2 scenes are side by side, it doesn't mean that's the right sequence. Hahahah

The only problem with this drama is its poor editing in some places. For example, there are 1-2 flashback scenes but they don't really change the background lighting tone and you might confused it as present scenes.

Even the present scenes could look a bit weird when the 2 scenes don't have a smooth transition.

I'm now at episode 16. Out of all theories that I have, one of them hit the mark regarding who is who. Now, towards the remaining episodes!

SPOILER BELOW*

READ AT YOUR OWN RISK.

1) From my understanding there are 4 potentially psychopathic children. Who is who? That's for you to find out. 2) Take.A.Note. like Seriously. That way you don't get confused as much as those who don't take notes and then complaining like an idiot saying "The storyline is too complicated etc".

Wew May 12 2021 7:09 am I see that some assume that Shin Sang is another psycopths right? What is the reason behind of choosing him?? I need to know ..mybe its true but still based on what do you guys think he is?

Oma May 12 2021 5:28 am I think there is a mix up somewhere. I had to go back to the first episode. And I notice in episode 2 that, when Yo Han's mom can to see Dr. Daniel they were two reports on the table. He took one in the envelope and excused himself to go meet someone. He handed the envelope to someone in the car (face of the person was not shown). The other Gene test analysis was on the table. Maybe the test result was switched......

sf May 12 2021 12:07 am @ Anna Suda I have the same opinion as you. They even made auxiliary episodes to explain to us what was happening in the main series. All has become so ridiculous.

Devina Septiana May 11 2021 7:39 pm

- - SPOILER***

Some theories say that YoHan and BaReum are two of products of Crispr technology experiment. The experiment is to add/inject MAOA gene into potentially-psychopath kids (or fetus) so they can think and feel like normal people (prevent them from killing), YoHan is a successful product while BaReum is a failed product. The other one (who has psychopath gene) suspect is Shin Sang.

I don't know if this is right or wrong. But I'm anticipating it

Anna Suda May 11 2021 1:08 pm The drama writers are drunk. Complicating the story doesn't necessarily mean it's a genius thing to do. I feel like this drama has the same problem as Iris with its multiple scenarios switch / spinn-off.

Webe May 11 2021 4:20 am I have been dreaming this drama and how to untie the plot almost every single night untill new episode and then continues to have nightmare again about seven days before new episode amd continues again untill I started to have a gene of psycopaths in me already.

zeeshan May 10 2021 10:38 pm so beautiful story writer did awesome job sorry to say this drama series not for simple minded peoples .

Cain May 09 2021 9:07 pm Ok, I know this is a thriller drama but I have stop and write some of the humour side of it albeit not much.

I can't believe in ep. 2 they got a script where the grandma has to do the 'glamorous' hand gestures to Jung Ba-reum. Kinda hilarious to see. If that's in real life and I'm Jung Ba-reum, I'd be so embarrassed to myself.

It's not that I don't like sexy woman, but we're talking about an underage girl. And her grandma really wants to make her as your bride. Even if she is not underage, her glamorous figure which I can acquire from my own observation, will stay in my head and I won't share it with anyone. Sexy body is good but I would try to like a woman because of her good personality as well.

The question is, if that happens to you IRL, what would be your respond?

Cupita May 09 2021 9:44 am @Tommy, your theory really absurd and funny, jaehoon and yohan are same age. Jennifer already dead six year before dr daniel visit Head hunter and his wife. You are really funny guy anyway.

tommy May 08 2021 7:07 pm Ba Reum (Jae Hoon) is the son of Dr Daniel's sister and Head Hunter (Jenifer), Dr Daniel when he found out he was the murderer, he asked him if he also killed his sister and he replied that he did it because he aborted his child. Daniel finds out that he is alive, that's why in previous episodes he is seen inquiring about Ba Reum and following or seeing Sung Yo Han. He finds out about the experiments because they send him a box containing mice, that is why he disappears. Until now, he is supposedly protecting Ba Reum, because they want to pass him off as a murderer.

Agua May 08 2021 6:15 pm The real murderer is the son of the Speaker of the Assembly, Shin Sung Min ...

where they did not approve the DNA project to detect psychopathic gene. Officer Choi Young Shin has something to do with it.

There were 2 pregnant women, one is Ba Reum's mother, his family was killed and they cheated with an aunt who raised him. The other is Sung ji eun mother of Sung Yo Han, who knew something because when he died an envelope was discovered where the objects burned, it could also be that they wanted to implicate him as a murderer. What are they hiding, the Doctors, where did they operate on Ba Reum? Dr Daniel, why did he disappear ??? And it appeared now. He discovered that everything is an experiment, or Sung Yo Han also discovered that it was part of an experiment and that's why they killed him. They want to implicate Ba Reum as a real murderer.

another stranger May 08 2021 9:00 am let's wait until the last eps. this getting interesting while sick cause we had so many theories in our head after watch it lol. I mean I like to think but so many plot twists made it more unpredictable. i know bareum is the predator but why oz protect him? what kind of experiment they're trying to do? i think when we found out that yohan's brain transplanted into bareum's was the only reason why the title of the drama is "Mouse". but there's more. interesting anyway. the oz organization.. I feel like watching Conan btw lol so misterious

please do not disappoint us writer-nim~ fighting!

yyy May 07 2021 9:18 pm There is a possibility that Yo-Han and Ba-reum are switched. In the past, Ji-eun was saved by young Song Soo Ho, brother of Song Soo Jung who was killed by the HH. Maybe, SSH was hired by OZ to follow Ji-eun and maybe for revenge. The HH killed his sister.

It is revealed that the one who killed the so-called mom of Bareum and his family was young SSH. So SSH in the past was following Bareum from Ji-eun to Bareum’s mother. The possibility is Bareum is the son of HH and Ji-eun.

To Choi-young Min, maybe she is one of the OZ.

grrrr May 07 2021 7:16 pm I personally think that Yo Han knew he was not HH's son and he obviously want to prove that facts by buzy followed and investigating someones. People just dont want to believe him. Maybe he knew that bareum was actualy the killer's son and he also know that he was pyscopath murder from the beginning but then he keep quiet just to collect enough proof but then he was killed in the middle... such a horrible patriot ending..LoL

wew May 07 2021 5:57 pm I'm having a depression thinking this tangled that has not been untie yet. Well what I'm sure for is Michaela was Jae hee tht went missing during the murder and fire. And when she saw Bareum as said that he was not her brother maybe beause she knew that bareum was jaehoon and she got trauma from the past, she has a sickness that make her remember evrything just like what bareum said to the police when he tried to find his sister. Lastly, "the brother" who was told by the nun I guess was Yo Han. Yo han knew something beforehand and that is why the Ahjumma told Bareum that Yo han asking where Jae Hee. I guess Yo Han already found jae hee and pretend to be her brother or actually he is really jaehee brother..

GoSoraGo May 07 2021 5:45 pm This is my theory based on the baby switching (MAY CONTAIN SPOILERS!!!!)

I think JBR is the son of HH and SYH is the son of the scientist, Dr Daniel's friend mentioned in ep 17 in ep 17, Dr Daniel said that his friend wanted to abort the fetus and he was sure about that.

When I saw the kid SYH, he was smaller compared to kid JBR/JaeHoon although they are on same age. They can choose an actor which has similar physical to JaeHoon. But the kid actor of SYH is small. That's why I think that the baby SYH was born premature.

Instead being aborted by his parents, the OZ might kept him. At that time, JiEun was on due and gave birth of JBR. The OZ switched the baby, and gave baby Yohan to JiEun. In the early episode, JiEun said to HH that she killed the baby. i think she knows the baby switching. maybe she was told that the baby carries good gene due to the good family background instead of her baby and JiEun chose to accept the baby SYH as her son.

JBR was given to Dr Daniel`s friend's wife. There may be some explanations on this which is still unclear. why they accept the baby JBR if they planned to abort their fetus?

It was also mentioned in early ep 17 that adult SYH visited the house where JBR/jaehoon and the family used to live on the day SYH went to kill JBR. SYH might also be the brother that Mikaela/JaeHee? waited in the orphanage.

I still think that JBR is HH's son.

Daisy May 07 2021 3:42 pm Does anyone know who play as Seong Yohan when he was a kid? The one who carrying Oh Bongyi after the incident. Thank you

Lee May 07 2021 11:11 am To answer the question below (SPOILERS): @quekekee

yes Yohan and Bareum/Jae Hoon were like mouse use for experiments.. i think.. the experiment goes like this..

they both have the same pyschopath gene...

the other one grow up in a loving family - yohan

the other one was abused and his family is having a hard time understanding him.. to make things worse.. i think someone ordered Jang Bareum/Jaehoon's family to be Murdered.. i guess that triggered his.. Revenge Murder..

i believe there has been a switch...... because I remember clearly that YOHAN told his mother this.. "You Knew Your Son Is A Murderer" - we all know now that Yohan is the kind one, so I'm guessing he's referring to JBR/Jae hoon... and also yohan's mother has flashback of JBR's childhood and her attempting to kill him.

I think they are switching yohan and JBR as a kid... Im guessing Yohan is the son of some else.. probably his real parents died and so the experiment was to remove JBR and put him a foster home for experiment then kill all his family leaving him alone LOL which is fucked up. poor kid.

I guess.. the experiment now is successful.. psychopath is indeed. Nurtured. Even if you have pyschopath gene, but if you grow up in a hostile home where nobody tried to understand you.. you will indeed become a killer... unlike yohan, who grow up caring for people around him.

Quekekee May 07 2021 9:03 am When yohan said to bareum that they are the mouse for experiment, does it mean that they have been 'used' even BEFORE they grew up or what? If so, then, being a killer is not the original side of bareum.

LEE May 07 2021 8:50 am some ask whats the difference between mouse and the mouse predator.. the difference is.. the mouse predator is told in JBR's perspective. shown in his real nature and how he fake being good

LEE May 07 2021 8:28 am Has anyone watch the mouse:predator ep 1 and 2? the special episodes? lol I don't know what to believe anymore. why do the flashbacks looks so different?? i mean.. the episode 17's image of JBR/Jaehoon's mom is different and the one who tried to kill Jaehoon as a kid was yohan's mom......... even the flashback it was shown that Yohan's mom tried to kill his own soon.. Jaehoon... She was the one living with a stepfather, and 2 kids, and jaehoon tried to kill the dog and his brother..

IS there a switching somewhere that's happening in this episode? the earlier episodes was clearly Sung Ji-Eun (yohan's mom)

but in episode 17, the lady was different? what is the meaning of this Haha! I'm confuse.. this is getting confusing...

when yohan's mom tried to kill jaehoon.. did she leave his own son in the forest and then was adopted by someone else was that iT?

Frustrated May 07 2021 8:27 am Can it be that be kills other people cause when that child or when they born, they has been operated ?

Roar May 07 2021 8:22 am What did I said was right. That they are mouse experiment/subject experiment. And what I have to wait one week again. Ahhhhhhhh

Inna May 07 2021 8:02 am one of ths best

May G. May 07 2021 3:50 am Mouse Predator 1and 2 made everything fuzzy lol I don't know what to believe except wait for the final episode.

Grrr May 07 2021 3:07 am Micahela was the real jae hee

Wew May 07 2021 3:04 am @Kimo Yes...I sometimes thought like tht like how if Bareum was changed with Yohan when they were born but somehow i think its absurb because earlier Yohan's mother was about to gibe birth meanwhile bareum's mother is still below and still can do abortion. Means here they both give birth in different times so how come the baby could change right?

@LEE... this is absolutely true because i still remember that yohan's mother remember when she try to kill jae hoon...but then, bareum started to see clearly that the nurse was his mother and the story of him tried to kill his brother. So who actually did yohan's mother remember she tried to kill? I just got so confused woth the scene.

nima May 07 2021 2:57 am Jbr must be han seo joon's son as he is older than yohan. at the beginning of this drama it is shown that sun ji eun pregnancy was older than jbr's so-called mom. so yohan being younger is her actual son. Maybe some high ranking officials were involved in it. they wanted to observe bareum and yohan initially but when their employ was involved in murder of that family, all those crimes were just covered up never to get it out in public.

LEE May 07 2021 2:30 am i think midway they decided to change the story...... i watch the first few episodes again.. i know that yohan's mother is JBR's mother.. the flashback was her.. why did they decided to change it?? weird.

In episode 17, JBR's mom is now different....i clearly remember that yohan's mother was so afraid when he saw bareum in the hospital. There was even a flashback of the memories of her and JBR.

JUSTMYOPINION May 06 2021 12:26 pm I just finished watching Episode 16. From the first episode until the latest one I swear I can't catch up with the twisted plots anymore. It was a great drama and surely thrilling but I give up and decided just to watch until the drama finish because I have a feeling Mouse is kind of Memorist (wheres the killer was revealed at the end of the episodes and sure there were lots of plot twists). My head hurts thinking what actually going on. Well apart from that hope the drama ends very well with answered questions.

Kimo May 06 2021 10:24 am I think Kim Yohan and Jung Ba Reum is switched at birth maybe. So Ba reum grow up in Yohan's house and Yohan grow up at Ba reum's house. Jung Ba Reum is the serial killer,Han Seo Joon's son i think because why would Han Seo Joon decided to save Ba Reum,who try to kill his son. The look on Ba reum 's face when he looked at Han Seo Joon in the prison on ep 1, was as if he is looking at someone that he admires,makes me feeling suspicious.

Just my guessing on the drama

SG May 06 2021 8:26 am And now who kill the parents of JH are SSH. Wow, I think there will be many plot twist again in the next ep. So tired of thinking theories.

Manny May 06 2021 5:46 am I like the twist although I wished the killer was not JBR but I assume the mystery boy from ep1 I assume would be JBR but who's the girl that killed the mouse? Also I don't understand why he would kill Chi Look. Was it so as to get evidence that he's a psycho

Watcher May 06 2021 3:06 am @Res that's why the drama title is "Mouse", because JBR/another psychopath are just lab experiment. I really enjoy watching this drama, it makes us guess the plot and the twist in every episodes.

Yuri May 06 2021 12:52 am This drama is becoming more exciting. Everyone has connections to the young Ba Reum. Maybe that's the reason he had continue to kill people. To is to avenge his mother.

The question is why did his aunt pretended to be his real aunt?

sf May 05 2021 9:44 pm @tfuee It seems that he works for somebody, maybe for Seo-Joon or somebody else interested in saving psychopaths. He saved YH's mother because she should give birth to her child, a future potential psychopath, and killed Je Hoon's mother because she wanted to kill JH. It seems that he was a psychopaths saviour. I don't try anymore to do any speculation because everything became too tangled.

tfuee May 05 2021 8:20 pm my question is, how old is sung su ho? because hes the one who saved sung ji eun. then he later saved jae hoon also. and is the one that got burnt to death really su ho?

Res May 05 2021 8:01 pm I think there is people in power behind all of the scenario of bareum's life. He is not only Psychopath boy Bareum's but also the object of experiment of something in power like government or organization.

WiL May 05 2021 5:27 pm Everybody is now convinced that Jung Ba Reum is the predator lol, I wouldn't be so sure yet, I still think he's not totally it, there has to be something else we don't know of. The mystery kid boy might be Jae Hoon yes, but what about the mystery kid girl who walked on the rat, who is she ? I think there is another big mistery behind Ba Reum's childoon, I'm still not very sure that he's really Jae Hoon and that kid mistery boy. Writers might be playing with us all along.

Wew May 05 2021 1:48 am Lol....I even cried watching this not because i dont want BR to be the killer but because of I still cant believe Yohan appear only a while and his character seems too pure to me and I love him...why must the writer make him end that way....just please make my Yohan clear from those accusation!

lala May 04 2021 11:06 pm eventhough already knew who is the predator, but the plot twist in this drama makes it more interesting!

Hmm May 04 2021 3:29 pm I just want another lee seung gi’s drama!!!!

Syeli May 03 2021 11:19 am If Michaela is jae hee and yohan is her brother, then who was 3 persons that jaehoon killed when he was kid.

chumpchang May 02 2021 12:34 pm I know where his left arm scar came from, maybe tt time when bong yi slashed him

Chocolove May 01 2021 12:07 pm Its obvious that jbr is the kid jaehoon from the start since he has minor/little role in the beginning until past half of the episodes lol the lead kid jaehoon is obviously the the lead jbr since the beginning haha

Tifa May 01 2021 11:33 am This show reminds me of the anime death note in a way haha

Scarlett May 01 2021 10:53 am Best best best kdrama ever. 10 out of 10. It's soo good that I can not concentrate in anything. ?

Fei May 01 2021 2:39 am This drama deserves a higher rating

Its Apr 30 2021 8:52 pm I knew who the killer (pshycopath or predator) was from first episode hahaha

Carefree Apr 30 2021 12:29 pm I have to say this is a great drama and I think the writer did an excellent job to portray what a psychopath is and how scary they can be. Psychopaths tend to be very charming and manipulative which enables them to blend into society just like JBR. JBR is your typical friendly, kind and helpful neighbour/friend/colleague that you would never ever suspect to be able to commit such atrocities. Since psychopaths lack emotion and empathy but have a constant need of strong stimulation, this often leads them to break societal rules to gain that extra bit of excitement. The fact that JBR thinks himself a deity and challenges God is a great example of a psychopath's narcissism and self grandeur.

sf Apr 30 2021 10:21 am @Aaa, The problem is that we will not know for sure whose the remorses are, JBR's or YH's? Why should I feel sorrow for JBR for his new perspective about his past? Is JBR's change due to him or tanks to JH's brain? Making JBR a criminal is an error of the writer, who has lost in his perpetual twist.

Aaa Apr 30 2021 8:28 am @ sf, I doubt thinking like a psychopath is the message of this show. The predator just need someone to blame ( and also that being being a psychopath is like being autistic, it’s not a choice it’s a handicap ). I think the message is more about doing your best regardless of your past. The 4 main leads had extrem difficult life, jbr was even a serial killer, and they still try their best.

sf Apr 30 2021 6:01 am Besides the negative aspect, making JBR a killer, there could be taken a conclusion about God. The writer, intentionally or not, pointed out many times JBR's prayers to God without getting help from him. We could conclude that our prayers to God are in vain. Is that an example of the new progressist current, which is expanding nowadays on the globe?

yong Apr 30 2021 5:47 am I think the first part was entertaining and so much fun solely because there were so many speculations and theories about Yohan was not the killer aka the predator; that Bareum was actually the predator. If Yohan was the killer then there shouldn't necessarily all the vagueness in the first part about the predator.

Bongyi Halmeoni Apr 30 2021 5:09 am @John Abraham, I'll try to answer your questions. 1) During the live show, Bareum also simultaneously showed the priest the live scenes of Han Kook and his brother Moochi, side on side. On the live scene of Han Kook, it was shown that Bareum put a bomb on the kid's body but the timer wasn't on yet. The priest knew then that if he mentioned Bareum's name, Bareum will definitely press the bomb timer and the kid will die immediately. In a way, the priest has no choice, he has to sacrifice himself to save Han Kook. 2) I am not sure about this one. Maybe the cut wasn't that deep to cause a blood splash. Bareum also wore a long sleeve shirt so maybe the blood didn't drip on the floor.

Mary Grace Apr 30 2021 3:32 am I got heart broken because i wanted jung bareum to be the hero here. But the writer has a diff idea. Right From the start of the story there are already hints and missing scenes that you would think ba reum is the psycophath. but because you are used to Seung gi's good character portrayal, you wouldnt accept and allow that to happen. During ep 14-15, scenes revealed who he was exactly. the feeling is unacceptable since you are rooting for the Ba Bong Couple. I couldnt explain how i feel about Ba reum when he realized he was the real killer. YES. He's DESPICABLE INDEED. now waiting for the episode 16, Did he really killed Chi kook so he wouldnt tell anyone he was the Killer? Would mochi discover it in Ep 16? Will Ba reum Die? What will happen to Bong yi when she finds out Ba reum is the psychopath? Ending Would be very tragic.

...... Im just so hooked that even My fav Lee Seung gi is the villain here, I would still Wait for the next heart breaking episode. Hahahaha!

Maic Apr 30 2021 1:24 am @jilcel you have to See mouse all ep ,so after see mouse the predator

jilcel Apr 29 2021 11:55 pm Love this Mouse Kdrama series especially with Lee Seung-Gi as the male lead ( or secret antagonist? ) But...Wait! What is the difference between Mouse and Mouse : The Predator? Do we have to watch both to understand the whole story? Or is the other one different from the first one? Can someone explain please!

zeeshan Apr 29 2021 11:43 pm end of episode 14 gave real time chill writer did great job

John Abraham Apr 29 2021 11:09 pm Two Big Plot holes -- 1). Father was killed in Church on live TV. Before getting killed the father could have revealed the name of killer (Ba-Reum) on live TV. So why the father din't reveal the name of killer on live TV ?

2). In the church the killer (Ba-Reum) fought with Bong-Yi & received knife slash injury on his left arm. His blood should have got spilled in the Church due to this & the forensic team should have got the DNA from the Church crime scene. Why this did not happen ?

Sikta mishra Apr 29 2021 9:52 pm Now it's kinda getting boring and annoying!!!

Resha Apr 29 2021 7:26 pm I am confused, what is a difference between Mouse and Mouse : The Predator?

Meandu Apr 29 2021 6:46 pm From the very start of the drama, BR was the killer. It does make more sense after watching mouse:predator. I dont think the director would change who the killer is since yo han is dead. BR has been the killer...

Madara Apr 29 2021 3:03 pm Currently watching episode 1-6 after watching Mouse: The Predator episode 1. Song Yo Han is the killer, then suddenly 15 episodes IN, JBR is the real killer? Did the Director changed his mind half way of the show? Cause a lot of them doesn’t make any sense.

GH Apr 29 2021 2:20 pm i love kyung soojin

Quekekee Apr 29 2021 8:26 am Honestly from the 2nd ep, i already thought that jbr is the killer despite his innocent face and yohan isnt though he show so much psycho side of his..but through the remaining ep, it goes round and round, fron yohan to shin sang and at the end, its bareum yow hahahhaha and now i am sooooo furious with jbr grrrrr especially when he killed halmeoni

Mirchea Apr 29 2021 7:05 am Masterpiece!!

sf Apr 29 2021 3:16 am I am disappointed about the turn the drama has taken. So, what is so special about making JB killer? There are other killers in other series too. What is supposed the writer wants to show us that JB is full of remorse? It is not JB who has remorse but, YH's brain makes JB have pricks of conscience. The sorrows that now fills JB are not his but YH's. What will be so special from now on in this drama? I would have liked more if the writer showed JB fight with YH's brain if YH would have been the killer.

Anastashia Apr 29 2021 12:49 am I only understand the ep 1 to 15 just now,(on how bareum become the serial killer) after watching the "predators"hahhaha...i love the story and the way they put an act..the only question in my head although i know from the start that it was #bareum (killer) on how he is being a killer when he is active on his job,and always stick to mochi..now i know? And about yu-han i get it why he is being at edge,he has also that predator gene but he can control,to the fact that he went to help hankook,but bareum caught him and eventually killed..Lee Seung Gi! U Nailed It??? Congratulations To All Cast & Staff U Did A Great Drama ??

Jona Apr 29 2021 12:38 am Yo han's mother in fact JBR's mom. Yo Han knows from the test that he is not her son and knew that his mother is hiding something. His mother knows that JBR(her son) is a killer.

lh28 Apr 29 2021 12:25 am Honestly, how is this show not receiving more attention? I Love the editing, actors, and writing–it's an amazing combination that always leaves me on the edge of my seat and craving to see more. Although the psychopathic concept is fictional, I can tell the production crew has put in an insane amount of effort to bring it to life. Btw, the reddit theories are so creative. Although only some are accurate, it just goes to show how many possible paths this show can take. Will definitely look forward to seeing how they will tie all the pieces together at the end. Highly, highly recommend this drama–you won't regret it!

icakyotie Apr 28 2021 9:34 pm i cannot handle the delay of the episode any longer. like literally i need ep 16&17 rn

Snpack Apr 28 2021 8:05 pm Okay - I just got really confused after watching episode 15. I see that JBR is the real serial killer, but one question is left unanswered. Before Yo Han died, he went to his mom and said, "You know your son is a killer." The mom appeared scared of him, and when she was in the hospital, she tried to hide why she ended up there. Why would Yo Han say this to her? So then, is JBR the kid that killed his stepdad and step (or half) siblings? I'm so confused with Yo Han's mom's memory of her calling her son a "monster."

Mai Apr 28 2021 3:41 am @bembem

Han seojoon is still alive because there is no death sentence in Korean law. He just stay in the prison until the end of his life. That's why Go MuChi tried to be outlaw so that he can enter the prison and kill Han SeoJoon by himself. He also felt the injustice of the law.

Nexols Apr 27 2021 6:34 pm I'm shocked it was perfect!!!

Shiny Apr 27 2021 10:29 am This drama really having very interesting story. Because easily we cannot guess what is next? And who’s the culprit? So many twists and unexpected turning points. The way of acter&actress expression really amazing. It’s feel like I’m also part of “mouse” drama. Thrilling story & lovely acting.I really wish from the start that lee seunggi shouldn’t be the criminal/psychopath.because, I felt like lee seunggi is suspicious why because he is missing in when every murder happens. Even though, it’s hard to believe it and I hope there should be another great great turning point.Now, that innocent sung yohan, chi kook died(my heart is broken). Finally, bong gi going to get hurt I think so. Anyhow I’m having a different journey path with this drama.

spoiler Apr 27 2021 7:15 am There's a lot of foreshadowing in this drama. I love it.

spoiler Apr 27 2021 7:14 am Spoiler alert*

To those asking why the brain of yohan was implanted in JBR, it's because JBR's brain is really crushed. No other reason lolll probably his father realized who his real son is so he decided to save him. Also in the first few episodes you can see that han seo joon is already interested in JBR the first time he sees him. I think he can read his eyes(like a psycho pretending) like how he can read moochi's eyes (good person). • There are also a few scenes in the first few episodes where JBR's eyes change into emptiness. Like that one time where he was taken aback with what bongyi told him. There's a lot more but i don't want it to be to long xdd

another stranger Apr 27 2021 1:48 am Spoiler Alert (please anyone havent been watch eps 14-15, just dont read)

ikr, bareum was very evil. like I Already Know, but why it so hard to be watched?! sincerly thankyou for all the theories in this comment section, made me not feeling so betrayed but still i feel it tho after eps 15 revealing who he was. i cant really picture seunggi's evil acting, and after saw it, im so mad lol

seunggi is the best actor! im happy choosing this drama instead vincenzo (but def gonna watch it later tho) Hehe

BemBem Apr 26 2021 12:20 pm Again Big Flaws in this drama is Han Seo Joon why not dead?

P.S: its getting absurd when seunggi serious face :V i always rmmber 1n2d his the trully innocnt one :V

Swwetgirl Apr 26 2021 10:35 am Lee seung gi acting is top notch ? wow from innocent ? and kind to a potential serial killer ( or a real and dangerous serial killer), it was done beautifully.

Nick Apr 26 2021 1:40 am Is there any romance in this drama???

Scout Apr 25 2021 7:00 pm Shin Sang

Daniel Apr 25 2021 9:43 am No wonder Han Seo-Joon said he wishes that Sung Yo-Han implanted brain will not encroach that of Jung Ba-Reum, because he must have known about Jung Ba-Reum being the killer and Sung Yo-Han brain was innocent

Nd Apr 25 2021 9:35 am Kinda absurd thougt, but, who is Michaela? Is she jae hee (jae hoon's sister)??!? Hmmm

Jil Apr 25 2021 4:37 am I still dont buy it, that Ba Reum is the killer.

That Dr Lee has still a lot of secrets.

Jinny Apr 24 2021 1:06 pm It was so clear from the beginning that JBR is the killer and that those memories were his own. But everyone kept telling me I was wrong lol. But there is more behing it tho! I really loooove this Drama!

park ju hyun cutie Apr 24 2021 10:49 am what i got is that JBR just get the emotions from the brain surgery that come from SYH, before that he was a cruel psychopatic killer not having any remorse or regret with killings. only he felt bad for the victims and their families when got SYH's brain frontal lobe. only thing i don't get is who is jae hoon now? is jae hoon JBR or SYH? there was a scene where jae hoon choked by SYH mother, right? it was comfusing, whether the kid entered the church was child JBR or SYH.

chamsae Apr 24 2021 6:08 am If JBR is the real killer and SYH is the nice one, why would headhunter put a “nice guy” brain inside the bad one ? i believe that there’s more than this

LEE Apr 24 2021 4:25 am (SPOILERS) i knew it. i knew it. JBR is the killer. If you guys watch the series again.. its already implied that he is the killer.. even the headhunter knows. Yohan's mother knows.. its hard to accept at first because we are already attached to the characters especially with Bong yi and JBR's love/partnership..the brain transplant thing doesn't make any sense but now that its all been revealed.... The Story Is Backkk To Where It All Make Sense..

I don't want him to be killer but --- its already been pointed out since the beginning of the story. it wouldn't make sense if JBR's killer instinct is from the brain surgery or injections etc.

all those flashbacks cant be manipulated. what dr. lee does was just manipulated JBR to kill those who are like him since JBR finally has guilt and emotions due to the brain surgery.. a full range psychopath cant be manipulated with the likes of dr.lee.. they probably kill the doc right away but with JBR's current state.. he feels emotions and at the same time he is strong and calculating..he can sense and predict what the killer does and so he's the perfect tool to eliminate those who are like him...

I think dr. lee and Choi Young-Shin are planning to use JBR's memory loss to eliminate the Predators/psychopaths/killers......

Im sure.....there will be a backstory why yohan's mom know that JBR is a killer.. i still believe JBR is the real son of the headhunter... and that yohan was his step brother... Jae Min.. either that or yohan is adopted son.. then...

Aaa Apr 24 2021 4:20 am This drama is so refreshing thank you dear writer

Aaa Apr 24 2021 4:16 am I really really like jbr to be the bad guy and it’s interesting to watch him deal with his 2 personalities . It would have been lame with Yohan as the killer. I just hope it doesn’t turn into a corruption story, we ve seem to much of those, even Beyond Evil ended up like this.... so predictable.... so sad

RphHH Apr 23 2021 11:23 pm I hope JBR is not headhunter son to overcome the genetic prejudice. But there are clues that he is HSJ son, SYH once said to his mom "Do you know yr son is a murderer?" which most likely refer to JBR, and that's the reason why he didn't report JBR. And also the reason why HSJ change his mind and do the brain surgery to save JBR. I don't know who's behind Daniel Lee (maybe the politician) but I hate the idea of killing all people with psycopath gene can save the world, very unethical.

Mikasa Apr 23 2021 11:00 pm Yes, the real killer is JBR, look at the mark of knife on his arms he got during fight w/ Bong Yi. Yo Han is the good one. The series never revealed the face of Yohan killing a person. The teenage Yohan try to commit suicide bcoz of bullying, and saying he's the son of headhunter. The real psychopath didn't have emotions according to Dr.Lee

Kiara Apr 23 2021 7:43 pm It's clear mow, JBR is Jae Hoon. I dont think Jae Hoon / JBR is the head hunter's son, he is the son from the other pregnant women. and yes, JBR is the killer, next week they do special episode about how he remember all the killing

maria Apr 23 2021 9:24 am JBR' scar on on his arms in ep.15 was made by OBY when she tried to kill Father KO's killer.. she said that she accidentally hit the killer with her knife.. and right handed.. that was the clue that JBR really the Predator.. when Michaela saw JBR on the orphanage.. he is not my brother.. because he is actually Jae Hoon who murdered his stepfather and stepbrother.. but how come Sung Yo Han became Si Jo Eun son.. baby switching? who is daniel lee's working for? OMG I think I will need brain transplant for overthinking.. LOL

fightstar Apr 23 2021 8:00 am at the end of the day, JBR is not really the killer. Another party is involved to destroy him. the story becomes very complicated. I still believed that SYH is still the killer.

Evanny Apr 23 2021 6:54 am Feeling clowned watching this drama. It reminds me of Memorist in which the suspect changed every other episode and I was just giving up guessing the real murderer. I'll just go with the flow with Mouse just as I watched several remaining episodes of Memorist. Anyway, the actors did really great job in portraying their character(s). I really appreciate their acting. Hopefully, Mouse will end in a good note! ?

Nurul Apr 23 2021 6:50 am Watched episode 14. When the sister said about one of their disabled lady "her brother promised to take her, but I've no idea the brother was him". Him refers to yohan. Remember young jae hoon has two younger siblings. One who would cover up of his doings and the other one is sister who is disabled.

I think grown up yohan wanted to cover for his brother (grown up jae hoon a.k.a bareum)

TINA AMOR BUHAT Apr 23 2021 5:26 am I don't think that JBR is the killer it was all all plotted in his brain to manipulate him and convinced that he is the real killer. Daniel had something injected to JBR.

Rizky Hamdanih Apr 23 2021 2:18 am This drama is same like Gods gift 14 days...

ABC Apr 23 2021 2:18 am @Cj I assume it's the President and the staff lady who are behind Daniel Lee. Now the next twist is the other person who moved Han Kook.

I feel that Choi HongJu knows something. She was too calm when the killer got her after she picked him up from prison, before JBR arrived. She said she had no choice but to drive him. But she was the one who offered.

This drama is something else. I guess it's the trend now to make the main lead the suspect of the murders. Flower of Evil with Lee JoonGi, Beyond Evil and now Mouse.

They have done well so far. Especially casting Moochi. I really enjoy his acting. He deserves his Baeksang nomination.

The guessing game really keeps it interesting, although there really too many psychopath serial killers around these people. For HongJu and her brother to escape the killer but then found by another serial killer? The ones who would hate this drama are probably Lee SeungGi's fans. ?

Jona Apr 23 2021 12:05 am JBR is the son of head hunter because only headhunter knew who Bareum really was and after finding out that he was his son, agreed to do the surgery because he loved his child. I think he's clearing all the evidence from behind to help Baruem. Yohan wanted to save his mother because he knew that she was emotionaly struggling with guilt of not killing her child and he saw his mother getting scared of Baruem at the hospital and his expression was suppose to be of anger not thrill. He knew that he was not the real son but loved his mother but through DNA test he confirmed it. Remember how he asked him mother that she knew that her son was a killer. Now we know that Yohan was not the killer but the killer is Baruem. So her son is Baruem.

sf Apr 22 2021 11:51 pm They managed to destroy the drama and my mood. It is a characteristic of the Koreans to ruin the serials. I don't know how "Beyond the evil" managed to save itself from being destroyed.

Cj Apr 22 2021 11:09 pm Just as what I've predicted from the start, JBR really is the killer cos all the situation that happened really fits and his acting is so fake. And also i think Yo Han is still alive and is the one who is acting behind the scenes in taking care of all the evidences JBR left. And i also think JBR is Han Seo Joon's son, cos i remember that time when Yo Han confronted his mother that he said " You know that your son is the murderer" which refers to JBR and Seo Joon also realizes it that time when he asked Yo Han's friend if Yo Han went to prison. But i really wonder who's behind the car when Daniel Lee hand over the documents and who are the person's who's helping Daniel Lee.

Yully Apr 22 2021 10:38 pm I got it right when I said Bareum a real killer and he lost his memories. But what I don't get here... Is Bareum a head hunter's son? I still thinking why Yohan burn DNA test... Is that from DNA test we can know whether we inherit physopath gene? Or, it's not DNA test? And why head hunter change his mind to do a surgery? It's because he want to save his child? Or because he knew Yohan not a killer, so, he want save another physopath? A brain trasplant is a success for me cause Yohan brain gave Bareum all emotions he want before. No wonder head hunter hope Yohan do not conquer all of Bareum self. So, Yohan is a boy who treat Bareum wound? I like a drama or movie who will keep me thinking and made my own theory until I know the fact. Haha... Good jobs!

Yully Apr 22 2021 10:18 pm The unaswered questions until ep 15 are... Who Dr. Daniel meet before he disappear? What Yohan throw from the boat? Who is mystery girl? I think she has her own story in this drama. Who hire person to take the proof from Bareum? I think if Dr. Daniel took himself, he will not come to Bareum house after that. Did Hong Ju's brother safe? What Yohan want to talk to Bareum? We... It's that we are twin? (hehehe..) Where Yohan got the picture? It's that from her mom? (Her mom also physopath? - joking) Who beat Yohan's dog? I'm curious... And... Just my thinking... Is that detective Shin's father is a physopath? So, he don't agree to kill unborn babies to protect his treasure? (By the way, I will also disagree with the idea cause children shouldn't blame for their parent's sin. And if their have physopath gene, they are not sinner as long as they do not any crimes)

Suci Adura Apr 22 2021 9:56 pm There are 5 more episodes... So, I think Bareum not kill Chi Kook but someone who are higher than Bareum who also partnering with Dr. Daniel send someone or he himself kill Chi Kook in hospital. It's because Bareum decide to kill himself, so, why he want to kill Chi Kook to close his mouth?

Loveme Apr 22 2021 6:49 pm Yupp, just as I predicted! I knew he was the killer. His kindness seem way too fake. And we all know that’s what a real killer would do, They Will try to act like a good civilian and like someone who cant harm a person or animal just to hide their true self.

Nirmala Apr 22 2021 5:13 pm Spoiler

Episode 15 gave all clarification. Jung Ba Reum was the real predator and Sung Yo Han had 1%genius gene and he has a pure soul , when i heard these dialogues, i felt pity bcz even though he wanted to save hankook and bong yi, he ended up as a psychopath in the view of people. I used to hate choi hong joo because she dated sung yo han, even though i know that he is not the killer bit after today episode i felt very bad. She can't return to her parents and her child has to suffer life long . The baby emotions felt so real when caretaker abused the baby. Bcz of these psychopaths, innocent people will suffer

Julietta Apr 22 2021 2:39 pm @RandZ Aah I see... I thought the kid was talking about JBR. Thanks for enlighting me

mia Apr 22 2021 1:24 pm too many psychopaths, this story doesn't make any sense. too many plots

mia Apr 22 2021 1:22 pm too many psychopaths, this story doesn't make any sense

Dawn Apr 22 2021 1:10 pm SPOILER: I watched today the 14 ep, but I only after a few hour realised the scar on his arm, that is the scar which cause by Bong Yi. I still hoping, the things are not that what are seem like. For me Yo Han from the first episode lamentable/ sympathetic (lol I think because of the actor :D), If it turns out he was innocent or less vilian my heart will break. :( Moreover, I don't know how I will watch this show, if the main character is a evil. :O Everything so strange, but we still don't know much about the past, and in the present what are the actions' motivation to among the characters.

Great Mouse Detective Apr 22 2021 12:42 pm Endgame: Bong Yi gets pregnant( because this is a drama about psychos propagating) Go Mo Chi ends up with PD Choi(coz he realizes Yo Han was innocent, feels guilty, raises his son) JBR dies( there’s no other way this can end)

RandZ Apr 22 2021 11:24 am I just wanted to Reply to a comment here But i dont know how to tag someone

@Julietta This is for you, the kid wasnt asking about JBR who is he, he was asking about the man with her who is supposed to be her husband, but JBR didnt even know !!

Maru Apr 22 2021 11:09 am this drama is a bit exaggerating making every body a psychopath. how come that one society has all these psychopaths? anyway it is still interesting.

Izzmee Apr 22 2021 10:44 am So Michaela is Jae Hee? and her oppa should be Jae Min or Jae Hoon. Is that Yohan who made promise to her but finally never come because he was dead?

Now i speculate that the kid in yellow who play mouse maybe is the chairman's son who has pyschopat gene too.

Julietta Apr 22 2021 10:30 am The highlight of ep. 14 was, when the aunt’s son asked her mother who was JBR, when they got in the bus... This could be another hint

Daniel’s Bunny Apr 22 2021 2:15 am [SPOILER:Ep. 14]

I had a feeling that BR was the one who did it in the first place and Yohan just knew in the beginning and finally wanted to end BR before he kills more. But as episodes gone by, it persuaded me to believe that BR is just a “good-villain” But Nahhh He Aint (as far as this ep). THO, the episode ending got me hoping he didn’t do it— and still kinda hoping it’s still a conspiracy behind the doctor and the government lady with the experiment thing because of the title “Mouse” (BR as a “mouse” human experiment) ? we still have 6 eps left ?

sf Apr 22 2021 1:12 am @xyz I have the same opinion that somebody is playing with JBR mind. Somebody planted all those things in JBR's old and new house, and I think that is a woman. At the beginning of episode 14th, it looks like somebody went to the old JBR's house. From the sound of the steps, it seems it could be a woman steps. Anyway, I must say that are too many twists in this drama which become tiring.

CowWorm Apr 22 2021 12:07 am Shit!!!

Xyz Apr 21 2021 9:45 pm SPOILER EPS 14

I just thought, what if all the evidence that JBR found may have been planned by someone, Bong-yi's grandmother's pin and the necklace may have been put by JBR's aunt (when she had cleaned the JBR house). Someone might have ordered her to do this, maybe it was the guy on the bus. There is someone behind all this, he makes JBR remember his previous actions. The person behind all of this might be Daniel Lee's real target or maybe the person who controlling Daniel Lee. However, I might be wrong

Whitney Stone Apr 21 2021 7:18 pm I predicted this from the very first time I saw this drama’s first episode. For some reason I found Jung Ba Reum weird and his innocent act wasn’t convincing me. I actually predicted most of the things he did and was gonna do to my sister and she was like naaaa he can’t be the killer. Now that he’s revealed to be the killer, I don’t know if I should be happy or not.?

Aiat Apr 21 2021 6:34 pm My comment for episode 14:

Whaaaat theeeee hell!!!!!!!! All my dreams have been destroyed.. T_T

Nirmala Apr 21 2021 3:06 pm They even showed how Ba-Reum killed father moo won in upcoming prebiew in tvN . Omg!!!

Nirmala Apr 21 2021 2:43 pm Spoiler

It was confirmed that Jung Ba Reum was the predator and Jae Hee was alive. Jae Hoon was none other than Ba-Reum and He used Sung Yo Han to kill the people. Jung Ba Reum aunt was not his real aunt, it was a fake family created by some one. But i think there was another predator we are unaware of whom Daniel lee hand over the cover to...waiting to see how story unfold

Sten Apr 21 2021 2:19 pm Good series, interesting twist after few episodes, thought I will not like it after that but story is intriguing and still looking at it without regretting. Worth to watch.

key Apr 20 2021 11:33 am the first 5 episodes of this drama are just too typical of a crime drama with psychopath characters for me, and I got bored. but as I continue watching this series the next episodes and plot become more and more interesting for me, now I waiting for the next episode every week, but since they have many criminals and characters in this drama I got confused with the names, like who is who? and their role, as every character in each episode, is related to each other

J Apr 20 2021 4:26 am I believe Jae-Hoon is Seo-Joon’s and Ji-Eun’s child from episode 1, and “Jae-Hoon’s Family” is Ji-Eun’s new husband’s family that she had with him. Basically, his half siblings.

However I could be incorrect because I’ve just started this show and I’m currently on episode two, after Jae-Hoon’s phase??‍♀️.

L Apr 20 2021 12:51 am I think Yohan soul and the doctor’s got switched, because when he saw the reporter Choi he started having a weird feeling on his chest,

Haroo Apr 19 2021 3:23 pm Yohan is not a killer, he was beaten, he wanted to kill himself, and he did not take revenge, also his father said to JBR something like: I hope that my son in you not win, because he was disappointed Yohan

JaewookBestie Apr 18 2021 11:44 pm Im actually scared at how good this show is ....

Step Apr 18 2021 9:42 pm i'm sure they won't make him a bad guy here! I think this is what they want to prove in the first place. That it is not hereditary at all.. and not all child will turn to be the same as his parents. Though I'm afraid he will get himself killed at the end, just to really stop cycle.

I am not a fan of this genre really but this is such an interesting to watch... not your ordinary thriller series. so this is a must watch!

Step Apr 18 2021 9:16 pm this is such an amazing plot! Watching on the edge of your seat, every time! it keeps your mind thinking, very unpredictable! Seunggi really can do anything...this made me like him even more.

Bucin oppa Apr 18 2021 9:27 am Okay, so the man who help Yohan's mom is Song Sooho. But then why he got killed by the psycho??? (as far as we know maybe it's Yohan). But i still dont believe that Yohan is a psycho

purple Apr 17 2021 10:49 pm Daniel Lee called Sung Yo-Han to fake his death and to command him to kill other psycho-killer but unfortunately Sung Yo-Han died because he can't overcome himself in killing other person. Jung Ba-Reum now will be assassin of psychopath killers with the help of Daniel Lee.. Choi Hong Ju is Kim Hyon Soo apprentice / subject experiment of Han Seo Joon.. This is only my speculations.. ?

luningning ortiz Apr 17 2021 7:17 am i love the story..very thrilling and the actors and actresses are also great..

Fredlyn Catalan Apr 17 2021 1:49 am Hi. This amazing. I cried a lot when Detective Ko witness the death of his hyung. I am move in tears too. Excellent acting and very good script writing. :) Kudos to the team.

maic Apr 16 2021 10:26 pm I still think yohan is not a killer. why if he went because daniel is alive? and if everything was done by bareum himself, and he without memory wants to believe that yohan was a murderer. or was yohan involved in the same thing as bareum with daniel, and did he take bareum's dna and bareum was a predator and should he be killed? and as he lost his memory, daniel went down to make good "use" of him ...

CC Apr 16 2021 7:16 pm Inquiring minds want to know: As of ep. 13 we have not seen Lee Seo-Jun for a while. Is he still in a coma?

Anonymous Apr 16 2021 4:44 pm we only see from the perspective that Jung Ba-Reum is a murderer, why don't you think that Jung Ba-Reum is a psychopath killer? The person who protects Han Seo-Joon's wife to kill Han Seo-Joon's son is Lee Min Soo, a police officer, he prevents Moo-Chi from getting out of prison to protect Bong-Yi, at the end of Eps 13 Jung Ba-Reum has learned that Lee Min Soo is a psychopath who wants to kill Kim Bong Cheol, then Jung Ba-Reum try to kill him or maybe not kill him yet, I don't know what happened, it's in the next episode

Aiat Apr 16 2021 6:20 am The blood that he implanted in ep 12, its from the necktie. Who's blood is that?

B Apr 15 2021 12:15 pm Anyone else here to believe that the government lady is actually Jung Ba-Reum's mom?

Tomi Apr 15 2021 11:20 am Because I don’t want any spoilers so won’t read any comments till I’m done with this series. I just finished episode 5 and my mind is blown!!!!!!!!!!!!!!!!! Oh my Go*!!!! I could feel Moo Chi’s pain. I would have let my tears flow freely if I was alone. And wow!! The story line is absolutely amazing!!!!!!!!!! This is a must watch. A Must Watch!!!!!! I won’t say more than this cause no one deserves to have this show spoiled for them.

curious watcher Apr 15 2021 6:10 am eps 12 shook me up. even tho bareum so boring that he just nervous will be caught. well, moochi having good instinct so no wonder if he get caught by moochi... by shinsang's help, and this person shinsang. why did he looking for the prove? how could he know? he is so suspicious. omg how if he was a predator or could be jaehoon? this never slip into my brain.

anyway i wish bareum just honest to moochi if his brain rn is yohan's brain. uhhh gemess bgt lol

sf Apr 15 2021 2:02 am I can't say I like the way the drama has taken, but I can't do anything about it so, I will accept what the writer is delivering. About the last sequence, is it possible that a partial brain transplant to change the subject's DNA? What if Mu-chi found YH's DNA on those clothes?

Daisyy Apr 15 2021 12:57 am Jung bareum is the next of Dexter.

EnChan Apr 14 2021 9:11 pm I just finished the 12th episode... I think Moo Chi found out that it was JBR who killed the rapist. But, just like what he told JBR earlier, he would cover it up if Bong Yi killed the rapist. He said he'll also do it if it was JBR. He probably think that JBR killed the rapist because he wanted to protect Bong Yi, something Moo Chi planned to do, actually. So he kinda emphatize with JBR and so he decided to hide the evidence. He probably think that he can trust JBR with Bong Yi because he is 'willing' to go as far as killing someone to protect Bong Yi. Which is justified by Moo Chi's wish to make sure Bong Yi is safe and happy.

Laura Apr 13 2021 3:35 pm This is really making me depressed my poor heart cant take it but plot is really interesting

wwwsabby Apr 13 2021 5:22 am This show is really legendary as for who love this kind of genre it is really out of my expectations and the characters really portray their roles like 100% of it. Wooooh Lee Seungi' fan here I also hope for the Season 2 of The Korean Odessy Hwayugi and The Vagbond that was really an amazing one also thank you for the directors and writers and to all people who made the show possible as a viewer I am really satisfied with the shows! Fighting everyone

amcrimi Apr 12 2021 7:04 am I feel there are three children: Yo han, the head hunter's son, Be Reum, the child of the lady who talked about her nice husband with Yo Han's mother when they were pregnant and another one, Jae Hoon? Because I remember that doctor Lee went to talk to somebody in a car when he was speaking with Yo Han's mother. Maybe he exchanged the test results? So, one of them is not a killer, Ba Reum? And who is that lady from de gouvernement? Someone from the real killer family?

Rut Apr 12 2021 3:09 am One of the greatest ambition of all TV series in the world. The idea is beyond anything and they fantastic deliver it . Plots was clever hidden in between layers , the characters was unpredictable and rage on murderer . There is no compromise

J.Y. Apr 12 2021 1:55 am My gut feeling is that P.O. is the unknown killer. His actions were small but suspicious - there were many times whereby he gave excuses of not doing important tasks, such as releasing the police officer when he had to be released quickly to save the victims

Justchii Apr 11 2021 11:35 pm @Lyr , i think his mother try to kill him with a poison.. thats why she look so disappointed at the hospital when she found out that her son still alive.

Suci Adura Apr 11 2021 9:45 pm I think in ep.1, dr. daniel lee had mention about his brother. He want to find his brother. So, his brother must have connection with plot story.

Tia Johnson Apr 11 2021 1:51 pm Standing by my theory that Yo Han is not a serial killer. Seo Joon just used his genius brain to make amnesiac serial killer even smarter. Killer recognize each other and Seo Joon knows his son doesn’t have it in him. Offspring is only important for legacy not love and Yo Han is too nice, so his father did away with him. Meanwhile, Daniel Lee and the government are trying to reroute Ba Reum into becoming a state assassin. How the hell does he know about the surgery? If Yo Han were really killer there’s no way Daniel Lee would be still alive so someone clearly faked the crime scene. I don’t believe the Dr has a malicious intent per se but instead is conducting an excitement to see if they can turn confirmed killers into hunter of other predators. When police and prosecution are clumsy bordering on incompetence, it is intentional.

Kd Apr 11 2021 8:23 am As I read through the comments, I see so many speculations and that whats make this drama interesting. The twist makes it confusing. To me Yo han is the killer in the first part, then BA reum will be on the next part. Daniel Lee making Ba Reum kill just to prove that his theory is right, I hope Ba Reum would overcome it but the next episode trailer doesnt seem so.

mirah Apr 11 2021 5:58 am well, everyone in this drama is suspicious except Ko Mo chi. :v

The birth of a begining Apr 10 2021 9:40 am If jong baroom and/or shin sang were killers, they were born with the acting gene, not the psychosis gene!

sf Apr 10 2021 1:43 am This drama isn't like most dramas where the criminal is disclosed to the viewers only at the end of it. Here, the viewers could see from the beginning who the criminal is. If you take into account the beginning of the drama and the cast, you can guess who the main character is. The first main character cannot disappear from the picture so soon as YH did. Even after YH's death, many people here sustained that he was not the killer. If the killer would have been JBR, would we have kept the interest in this drama further? We would have known the criminal, and the principal character would have become Mu-chi in the fight to discover the criminal. That would come in contradiction with the current order of the cast. From the beginning were two children, potentially killers in the future (YH and JBR), and one who was for sure a killer (Jae-Hoon). These are the principal subjects in the drama. Two are known, the third one is not yet known. All the other characters, the producer, Woo Hyung-Chul, the paedophile, are only supplements to fill the drama. Many people here are focused and become suspicious of the non-important characters. JBR has psychopath genes, but his genes for so many years were in a latent state, were inactive. Starting with the trauma he suffered and after the surgery, his genes were activated. Only JBR's actions will be important from now on. The path he will take depends on whose brain will win, and of course on the writer will too. All the rest are only to fill the time of the drama.

another stranger Apr 10 2021 12:54 am absolutely agree with Bongyi Halmoni. im also sure that Yohan is pychopath killers. and turn out he died. then dr Lee change his target to Bareum as another pychopath killers. im sure Bareum was a clever pychopath that leads the police to suspicous Yohan. well, Bareum before surgery must be very evil.

a little sure that i doubt Jaehoon is Bareum. and from the first scene, it think little Yohan was the one that Jaehoon want to be like. we dont know why a little Yohan was so nice and became so cold when he grew up. maybe because he was fighting so hard to be a pychopath or not.

and for the last scene of detective Moochi got beat, im afraid that the real predator kills him. or another theory that Bareum is the one beat Moochi up so that he could kill Kang Deokso.

if Bareum becomes pyschopath killers, i think this drama will be much interesting now. actually this is my first time watching ongoing drama and havent bored yet lol usually im not enjoying watching ongoing dramas cause i got bored and want the ending faster. so far so good. hope its not dissapointed us.

dyampee Apr 09 2021 7:23 pm I think here's the twist in this story.

Sung- Yo Han should be the first Dark Hero the 1st Agent of the Project by Dr. Lee to kill Psycopath Killers. Since Yo-han have tried suppress his Psycopath DNA as part of Dr. Lee's project. He somehow suspect JBR to be the Diety Serial Killer and tried to murder him in order to surpess his killing intent until he committed his first mistake and that is to kill OBY's Grandma. In the series its the only killing he became emotional because the grandma is innocent and not Psychopath at all. He might have killed the grandma because of this secret.

I think both JBR AND SYH is not the Diety Serial Killer. I think he would be the final boss that JBR will be hunting. :)

Furia Apr 09 2021 11:50 am 1. Who is the man/boy in Jae Hoon's eye from movie opening? 2. Why is he using red shirt and white trouser? 3. What is the device that shown also in opening at bareum side. Bottom left paper. Just like they want to show it there, intentionally. 4. Why chi kook and muchi's brother were not killed in first attempt? Other victims were killed. And why muwon doesn't have any revenge motivation? 5. Who is the person that cleaned up the crime scene? And why he knew that bareum's was there? Why Daniel showed up now not when bareum and yohan were fighting? I believe he also has a dark secret. 6. Who is that detective lee? 7. Where is han kook? Why it tooks so long? 8. Bareum's right hand using bandage when he wants to collect KDS saliva at evidence office. Then he collected some brushes with bandage hand and awkwardly he also collected some brushes without bandage. When his aunt's child at his house, his right hand still without bandage. And still clean without any wound. Idk if it's intentional or just goofs? If it's intentional then there are maybe two different slot time after he collecting KDS saliva at the street. 9. I read in google that brain transplantation is still quite impossible, then why they forced it as a main topic? Was it just want to forced relation between psychopath and his brain? 10. Seung said in his interview that it will be a tragical ending and then he asked himself if he blows up. But, I don't think so. Maybe it's just another setup.. 11. Who wants to try suicide KDS? The writing found at beside KDS is different with his mom's writing. 12. Why hong ju was there helping HSJ? Is the baby really her baby from SYH? 13. Why suddenly there is recording showing WHC at the boat? Who's the person that intentionally want to show it to other cops?

I hope those questions could be solved when the serial ends..

RANBEE GRAY Apr 09 2021 11:30 am Yes. Finally Episode 11 is very special, why? lots of twists & extraordinary events and the presence of several new characters who seem important,

1. Doctor Daniel Lee is still alive! I don't know why he can live after being attacked by Sung Yohan in a carousel, and why he's been hiding for the past 1 year or so. I think he wants to Witness Jung Bareum's progress after surgery & then he will make Bareum a "Research object" to kill Han Seo Joon.

2.From the flashback of the two children in the meadow, it appears that Jaehoon met his schoolmate, when he was killing animals again. But his friend actually helped Jaehoon's hand and made Jaehoon say "I want to be like him, I want to be him. The possibility of that flashback is Jaehoon & his friends are Sung Yohan & Jung Bareum. Just don't know who they are in the future, it's not clear yet.

3. New character appears under the guise of Detective, but very suspicious. Why? yes suddenly another young detective character appears besides Shin Sang, of course very strange, especially because he is the same age as Jung Bareum, Shin Sang & Sung Yohan (26 years old) could be the child of one of the women whose psychopathic DNA was tested by Doctor Lee 26 years ago. and there is another character who hit Detective GoMochi's head after a car accident. looks from his hands he has a code like the victims of the head hunter aka han seo joon. Was he the experimental "rat" Han Seo Joon who started when he was a Head hunter? I suspect that he is the main culprit of all murders under the guise of 7 sins (even though in Bareum's memory the one who killed Grandma and the Boxer is Sung Yohan)

4. Finally, the hammer was knocked down, for the sake of himself & others Jung Bareum had to become a psychopath. Well We will see the genius PSYCHOPAT who has Emotional Hunting for Predator PSYCHOPATS out there, including the Main Perpetrator of the 7 sins & the latest murder imitating the 7 sins. It is only a matter of time whether the Police prosecute the Psychopath or Jung Bareum Himself !!

5. His aunt Jung Bareum. I was sure I was very suspicious, her gestures, the words were full of lies. I'm sure she is not Jung Bareum's real aunt, she was assigned someone to manipulate Jung Bareum's "mind" from childhood to adulthood. I believe her mother Jung Bareum is still alive & hidden by her aunt & she changed her identity.

6. Detective Shin Sang turns out to be majoring in Child Psychology, he can know the characteristics and psychology of psychopaths too. and his role is getting more and more here. I'm sure he is also a Psychopath like Sung Yohan & Woo hyung Cul

sf Apr 09 2021 10:00 am Potential spoiler.

This drama isn't like most dramas where the criminal is disclosed to the viewers only at the end of it. Here, the viewers could see from the beginning who the criminal is. If you take into account the beginning of the drama and the cast, you can guess who the main character is. The first main character cannot disappear from the picture so soon as YH did. Even after YH's death, many people here sustained that he was not the killer. If the killer would have been JBR, would we have kept the interest in this drama further? We would have known the criminal, and the principal character would have become Mu-chi in the fight to discover the criminal. That would come in contradiction with the current order of the cast. From the beginning were two children, potentially killers in the future (YH and JBR), and one who was for sure a killer (Jae-Hoon). These are the principal subjects in the drama. Two are known, the third one is not yet known. All the other characters, the producer, Woo Hyung-Chul, the paedophile, are only supplements to fill the drama. Many here are focused and become suspicious of the non-important characters, for example, a young student who in one moment of his life he looked in a strange way to somebody or the aunt who seems mysterious and, who knows what secrets she has. The things are already clear meaning that only JBR's actions will have importance from now on. All the rest are only to fill the time of the drama.

The pianist Apr 09 2021 8:31 am Is there any cuorius for the detective who not give the letter from. Deoksu omma? Who he is?

Bongyi Halmeoni Apr 09 2021 8:19 am I think another theory is that Yohan was initially the psychopath who hunted for another psychopath, just like what Bareum did now. I think Dr. Lee purposely approached Yohan just like how he approached Bareum now. If this theory is correct, that explained why they found Yohan's shoes covered with blood which matched with the unidentified man found in the sea. Since the unidentified man was not Dr. Lee, I guess the man was a random psychopath that Yohan killed with the assistant of Dr. Lee. Yohan knew that Bareum is the serial killer and a psychopath, so he targeted to kill him. That was why that night Yohan went to Bareum's house to kill him. Since the brain surgery happened and Yohan's brain is slowly taking over Bareum's brain in terms of emotions, that is why Dr. Lee decided to approach Bareum so that he can make use of Bareum and turn him into a "righteous" psychopath killer now instead of just a ruthless psychopath killer before his surgery.

Tina#Tz Apr 09 2021 7:15 am Me running here after every episode for spoiler .... Its so nerve wracking...should i just wait till they finish airing ...can I even bear waiting

Headache Apr 09 2021 6:34 am --- what the heck, david lee is alive. I doubt yohan is alive too? Lol -- Shinsang is a child of the candidate for the president and 100 percent he's a psycho how come, he didn't have a threat when he already talk with yohan how many times and even triggers him sometime.

-- there's an assailant and I thinks that one detective is that cute tall detective aside from shin sang -- wow!! They add mystery kids here hopefully they'll reveal all on ep12 gash

Caroline Apr 09 2021 6:15 am I hope JBR will never be a predator even though ik he will be. Besides he has the brain of SYH. If daniel lee is alive then could Song Yohan be alive too? Gosh I love the twists.

wawa Apr 09 2021 1:47 am my theory, shinsang (PO) is the real killer. his mother, gov secretary needs somebody to cover his crime, so she required JBR to be the killer in fact, JBR will get the punishment imstead of PO. the reason, she was the one who served brain operation, politics here seems dominan showed, in the end when she wll be the president, the fact will be clear. this is not about the psycopath genre, but included politics. not only about who is the real killer, but who is the master mind behind of this. just one theory, i enjoyed so much the drama, n curious the end, appreciate for the others theory here. good review n worth watching

m8 Apr 09 2021 12:32 am so JBR psycopath trait has been awaken for real this time, i believe he will become a predator for another killer/criminal

and also there's a sus person in the police ,hell there are sus person everywhere lol this could lead to bigger matter than just psychopath vs psycopath, i think it have something to do with the government

jarn Apr 08 2021 11:15 pm interesting.. ep11.. very interesting.. mark my word.. JBR is the predator.. why? his friend chi guk who now at hospital once he woke up he will tell the world that the killer is JBR.. kill the psycopath.. interesting 2nd half story..

Melove Apr 08 2021 6:16 pm At this point im not even going to predict the killer lol If it’s really Yohan then shouldnt they show flashback scenes of him actually killing? Because in previous episodes, the killer’s face has been hidden and voice changed....im so curious about JBR now

lsg Apr 08 2021 4:23 pm SPOLER ALERT ?????

okay so im in ep 6 and i think bareum is the killer because 1 percent of the psychopath gene is for the geniuses and bareum is acting a little stupid (no offense lol) if he's innocent

Also i really dont want to see lee seunggi as a psychopath it literally pains me :(((((

yong Apr 08 2021 9:16 am why no one talking about the little boy who went to the same school as Jaehoon who stared at Jaehoon when he walked out the room after the teacher calling him for killing the rabbit. Who is he? Is that yohan? Or even shin sang? Or maybe one of JBR's friend?

Kdram Apr 08 2021 7:47 am why is no one talking about the fact that Jung ba reum aunt is hiding something from him and there were three pregnant women in that hospital

Typical007 Apr 08 2021 3:56 am The way Daniel Lee give warning to Ba Reum is like Yo Han is the real killer....

Syra Apr 08 2021 12:54 am Professor Daniel is alive and I guess Yohan is alive too....twists twists...;) Can't wait for new episodes....

sf Apr 08 2021 12:38 am Oops, Yohan!

Typical007 Apr 07 2021 10:53 pm Delayed due to Korean election something like that

Ana Apr 07 2021 10:26 pm I hope Go Mu Chi still alive til the end.

gnam Apr 07 2021 9:03 pm or perhaps they needed a filler, because production was halted due to someone on set getting sick...

Dnam Apr 07 2021 8:39 pm are they doing a drama special because the characters got so convoluted the writers cant explain them properly within the drama itself? thats what happens complexity for complexity sake gets conflated with intricate story telling. then again nuances are generally lost on kdrama and usual audience.

Meowww Apr 07 2021 7:37 pm The Mint smells maybe came from Shin Sang's hand sanitizer.

yong Apr 07 2021 10:41 am I don't think shin sang is the killer. I'm sorry to say this, but if shin sang is the killer, they wouldn't cast P.O (name of the actor) to play this character. No offense, no hard feeling, I just looked at it objectively. P.O is a rookie actor and I think his capability is not yet to be the main predator in this drama. He may be the subordinate of the predator, though I still doubt it. I just don't think he is going to be bad in this drama, nothing seem to be suspicious about him except the fact that he's the only one around who has potential to be the predator; in assumption that Yohan and JBR not the predator.

Headache Apr 07 2021 9:37 am - I don't regret watching these! The psycho-crime drama is so damn good. Bareums theory hoping yohan is not actually a killer but he is!! And one thing that I suspects is shin sang. The more the character who is dumber and thinks that its cute (just like in vincenzo which is we never expect at first eps that taeyeon is actually a villain and killer) more revelation to come please can't wait tonight!! --

RANBEE GRAY Apr 07 2021 2:35 am Some things that are still mysterious in this Mouse series, which are important clues

1. When Young Go Mochi (High School) came to Sung Ji Eun (Han Seo Joon's wife) to ask Sung Ji Eun to give her money because her sister was going to be operated on because of her husband's actions. Suddenly came his son Sung Ji Eun When he was little (about 10 years old) but his form was not shown. Why? If that's Sung Yohan, why do you have to hide his face / body? very suspicious. It is possible that Detective Go Mochi already knew that Sung Yohan was a different adult from Sung Yohan when he was a child.

2. At the end of eps 1, you can see the unexpected physique of a serial killer psychopath and a photo of a child in yellow who likes to play with rats. who is this person? if he's Jung Bareum why are there childhood photos there? while at home there is only a photo of him when he was a baby with what his mother said (his aunt kept all photos of Bareum's photos from childhood for a specific purpose) and when her aunt showed Bareum's little Jung's photo on the refrigerator, it was seen that a child was different from Bareum's memory right?

3. Her mother Jung Bareum is a good woman, so is her husband who is said to be a good man. so how come their child has psychopathic DNA? That's why the young woman (Jung Bareum's mother) didn't believe it and still gave birth to her child. Here I am sure Doctor Daniel Lee has lied by exchanging DNA test results for Jung Bareum's mother who should be negative & the official / politician's son in the black car whom he secretly met who was possibly psychopathic DNA positive. So from the start Jung Bareum shouldn't have psychopathic DNA, if genius DNA could be. The identity of the official's son must be revealed if he wants to accuse Jung Bareum, the real PSIKOPAT.

4. It is possible that Detective Shin Sang, Go Mochi's subordinate, is the PSIKOPAT son of the officer and Shin Sang is also one of the serial killers currently teaming up with other Psychopaths. evident from the many strange behavior of Shin Sang in this Mouse series. Starting from removing the evidence of a Murder (Sachet Coffee), lying to Gomochi about following Sung Yohan & His motive for entering the police when he was clear was the son of a wealthy man (his father was a former attorney general and now a candidate for president of Korea)

Anen Apr 06 2021 8:58 pm Wow, so many theories... May I share mine? Professor Daniel Lee said that the difference between the DNA of the psychopath and the DNA of the genius only differs by 1%. I'd like to take that premise as the underlying thrust of this drama (if it has one). Then, the best punishment for the Head Hunter was to create (by surgery on JBR's brain) a genius profiler capable of hunting down all killers. Regardless of whether he is his son or not, JBR should be the way to finally defeat HSJ's "perfect brain". I feel like the script of the drama is still a bit raw, a lot of "neuro-literary" licenses, there are so many characters that are difficult to memorize, less to empathize with them...but, I enjoy the idea and the cast, so I will continue to see it.

sf Apr 06 2021 10:51 am I have already taken into account the change of the name that's why I said it would have been easy for MC to find YH's mom. The one who keeps secrets more than anyone is the journalist (who, from my point of view, is becoming annoying) who seems more interested in having success in her career than to reveal the truth.

yong Apr 05 2021 8:27 pm @sf actually in one ep, Hong Ju told the same thing to MC. She said if he did serious about killing SJ's son, then he should have found them by the time. But at recent video, after MC found out about Yohan, he did say that the reason he couldn't find them until then is because Ji Eun changed her name. He actually also asked Hong Ju to find SJ's son. Hong Ju found Yohan and knew he was SJ's son, but she didn't tell MC about it.

sf Apr 05 2021 9:31 am @Ysf Well, he didn't know for sure, but he should have thought about this possibility and being a cop, it would have been easy to find Yohan's mother and then YH himself. What he did was to give SJ the information that he has a son.

Ysf Apr 05 2021 8:33 am @SF, he looked for ji eun's son, that was why when he went to prison to see han seo Jun, he told han seo Jun that he will kill Han seo Jun in front of his son , the main reason why he didn't think of Ji eun's son being the killer is that no one knew Ji-Eun's son has a pschopathic Gene except the mother and Dr Daniel, that's also the reason why Hong ju dated Yohan, because being the son of a psychopath doesn't mean he is a psychopath. Also Ji-eun hided Yohan so well that even Dr Daniel was not able to find him until he went to her house and saw his picture.

sf Apr 05 2021 8:07 am 1. An error of this drama is when Mu-chi started to investigate the crimes he didn't start the investigation finding the potential killer he already knew that he exists, namely Ji-Eun's son. Many episodes I keep asking, why the hell doesn't he start searching Ji-eun son? 2. Yohan could be alive. When Seo-Jun started the brain surgery being at Yohan head, he said, talking about Yohan, that he will live from now on like this. We still don't know what that means. So for those who are missing Yohan, there still is the possibility that Yohan to appear again. 3. After the surgery, JBR went to the jail to ask SJ what he has done with his brain. At the end of the conversations, SJ told JBT that he hopes that his brain to win over YH's brain.

Yea Apr 05 2021 7:48 am I just liked to say, personality and memory and social behaviour and self control... ect are located in the frontal lobe. So it’s pretty much transferring Yo han in an other body, it mean JbR should have no memory of JBR. Also the reason of the brain surgery is really lame, because people put pressure for someone to be resuscitated? And the government just decided to make the transplant with a presumed serial killer ? Also I’ll be a bit disappointed if Jbr is not the serial killer

Fion Apr 05 2021 5:03 am Actually am confused in some of the parts. Hopefully more informations will be unfold soon.

yong Apr 05 2021 4:38 am @iamasuckerfor_mysterydramas I hope you read it. I read your comment and it is so interesting. I'm watching with the assumption that JBR was the killer. And it has high possibility but at the other times, some things missed. Like you said, the granny. The granny indeed looked and took photo from yohan's house. So yohan did chase her. But actually, they didn't show the part when the granny is being killed. I meant, somehow it can be a misunderstanding also. The photos in yohan's house didn't directly mean he killed them. Main reason, because they never really showed it in the first place (Yohan's face when he killed the victim) when his identity was already revealed as a predator. It can be intentional, but not common. Why? Because it is the highlight in this kind of drama. Though, I actually believed he killed dr. Daniel, cause they actually showed when yohan met and killed him. So in this case, I believe yohan is also a killer, but not the predator. Second, the way he killed dr. Daniel is different from the way he killed other victims. The predator liked to put the victims in visible area, but yohan killed and put the body in a suitcase and threw it in the sea. And third, he just didn't look that way. The way when he hug Hong Ju, also her mother. The mother isn't the type to cover for her husband when she knew that her husband was head hunter. So I don't think it is easy for her mother to live with Yohan if she knew he killed people. And also she once said that Yohan is innocent, and thought about how she can repay for her sin. For these reasons, I didn't think Yohan is Jae Hoon or at least the predator.

And about how her mother still alive. I actually watched it again in ep 2, they only showed the photo of three people died. So I think Jae Hoon didn't kill the mother actually.

Also yess, I also think JBR is head hunter's son. From the very first when head hunter saw JBR when he about to help NCK in prison, he saw JBR and smiled. I think he knew that JBR was a psychopath. Head hunter once said to GMC that he knew from the eyes whether the person can kill people or not. I think head hunter saw JBR and knew that he was acting at the time. JBR didn't want NCK to wake up, cause probably NCK saw him when he tried to kill him, but he acted as his friend. Other time when they met again after the surgery, head hunter did say that JBR eyes looked different, probably because JBR lost memory so he didn't aware that he was a predator. And other reason, same as you, I didn't think head hunter would easily killed Yohan if he knew Yohan was his son. After all, he killed the dr. Daniel's sister cause she aborted their child.

For me, the mystery here is the boy in yellow and the girl he met. Who is the girl? The other girl who helped head hunter to kill the woman in early ep is Choi Hong Ju. But I haven't find other woman who supposed to be the girl who was with boy in yellow. And actually, it's not clear yet whether the boy in yellow is Jae Hoon or not. What I assumed, the boy in yellow is JBR cause he remember about it. But JBR actually doesn't have memory about Jae Hoon yet, which can be assumed he was not Jae Hoon. Because the boy in yellow and Jae Hoon can be different person. Here actually, I was confused about who is supposed to be who. Really, really eager to watch the next eps.

Gigi Apr 05 2021 3:59 am The writer really had to bring in brain transplant surgery to make us think sung yo han is the killer, they must think viewers are gullible. If yohan is the killer, why hasn't his POV being shown when he committed the murders since he's dead already. Also, why did he let himself get caught so easily, he kept stabbing bareum even when detective moochi showed up, it doesn't make sense. Literally anybody could be the killer but not yohan

ooo Apr 05 2021 2:23 am im still on the 4th eps, but why do i think the producer is not helping? especially when the phone call is leaked. she should know better i think

iamasuckerfor_mysterydramas Apr 05 2021 12:48 am Hmmm... A lot of interesting theories here. But personally, I don't think Jang Ba Reum is the killer. Yohan did kill all those people. First of all, not all scenes would be aired in the show. For those pointing out that JBR never told the police about Bong Yi cutting the killer's arm in the cathedral, that might have been just an editing matter. Maybe he forgot, and it will be brought up again later. Furthermore, it was shown that LSG is in another place when those murders occurred. He was at the police station when Bong Yi's grandma was hiding from the killer. Why would Yohan also follow Bong Yi's grandma? It was also Yohan who was narrating the killer's POV. Furthermore, in all KDramas, all leads who have psychopathic tendencies do not go down that road. Example is Lee Jin Wook in Voice 2 and 3. Second point, in Episode 9 and 10, it was shown that the other baby with the monster gene was Woo Hyung Chul, the serial killer of females whom he thought was "vulgar". It couldn't be JBR or SYH. What I can't figure out is if Jae Hoon was Sung Yong Han, aren't all his family killed? Why is the mother alive? Why does Sung Jin Ah have the memory of choking Jae Hoon? However, I do think that JBR is Han Seo Jun's son because of what Moo Chi said "I hear psychopaths have unbelievable love towards their children." HSJ couldn't possibly kill Yohan if he were his son. That's why he changed his mind - because JBR was his son. Furthermore, it was shown that Yohan did a DNA test. Then HSJ figured it out when he read something from the newspaper about DNA test on prisoners. He asked the prison doctor if Yohan was there, because he knew Yohan went there to get his DNA (not only to kill Na Chi Kook). Yohan knew that he wasn't the head hunter's son. And HSJ also cursed his wife when he found out something. I think it was because he found out that Yohan wasn't his son. Besides, the conversation between Yohan and HSJ wasn't even shown. I bet they're gonna show it in later episodes.

But I do think you all have a point about JBR potentially being the killer. If SYH isn't Sung Jin Ah's son, and SYH knows this, then why would he tell her "You know that your son is a murderer, right?" Who is the murderer then?

Who is the nurse who was pregnant at the same time Sung Jin Ah was pregnant and why did the camera focus on her in the flashback? I can't think of any other possible person who could be that child, but one does come to mind. If it wasn't JBR, then it could be "Nepo". I don't know if it makes sense but it has to be someone who's close to them. The nurse could be Nepo's father's wife because of what Moochi said "I can't believe your parents waited for you for 10 years." That is what that person who made the casting vote for the "abort-babies-with-monster-genes law" said as well. Or it could be one of JBR's friends. Either NCK is alive and well and he's just pretending to be in coma or Dong Ki is. I don't know. I just can't believe it would be JBR yet. But my guess for now is it's really Yohan who killed them all and another person with the monster gene is also killing them. In other words, there are two killers.

Marie Apr 04 2021 6:42 pm I think Bareum is the killer. Sung Gina mom of Sung Yohan changed between Sung Yohan & Bareum, remember at the hospital there is one nurse also pregnant. That’s why also i think Yohan do the background check for Bareum and do the DNA test. Sung Gina also regret it.

I still cannot brain why this drama killed Yohan’s character. ? So sad so many undisclosed things.

T Apr 04 2021 12:03 pm The girl who was burnt and the one hanged with her middle finger pointing at the cross in ep10, were they killed by a copycat killer or the serial killer is back. Or were they killed by the lawyer?

Fion Apr 04 2021 10:03 am I will be sad if Ba Reum is the killer. However, many missing puzzles do not match. Many times the one who doesn’t looks like the killer is the killer. I cried so much when Moo Chi’s brother dies. Oh boy can really feel his pain at that moment.

yong Apr 04 2021 9:53 am @esuom I actually think the boy in yellow and jae hoon may not be the same person. Bareum only remember about the boy in yellow but he never had memory about jae hoon. If he was jae hoon, he should have the memory when he prayed in the church, but he actually not. On the other hand, jae hoon killed the father but we don't know yet whether he killed his brother and sister or not. So yohan can be the brother or maybe jae hoon himself. Apart from it, they actually showed yohan killed dr. daniel. So I think yohan, may not be the serial killer, but he did kill also.

hana Apr 04 2021 9:52 am i'm curious of the mystery kids though; i know that kid in yellow is small BR (which he mistook to be small YH), that little girl in ep1 that lure the victim supposed to be Hongju (because she said that she kinda similar to YH - helped in killings) and the teen that stepped on the mouse is a bigger version of Hongju?

I kind of agree with @yong too, why the writer didn't show YH directly killing anyone since he's exposed to be the killer in first 3eps. and I also thought that BR could have a split personality disorder but he himself didn't know about it.

this drama is so good that I binge watch 9eps in one seating but also gave me headache at same time, thinking of the plots and connections.

Julietta Apr 04 2021 8:54 am OMG! This drama attracts so much attention! There are more than 500 comments already.. Kudos to the writer..

And I feel so excited reading all the comments and theories here.. and can’t wait for the episodes of the drama to prove all the theories that have been circling around.

Let’s enjoy the ride!

Yeji Apr 04 2021 8:25 am @Lyr yes you're right. Bareum never mentioned to moochi about the text he received from bong yi's grandma before she died. I waited for that part but it never came, bareum also never told moochi about bongyi cutting the killer's hand, which is why I've always suspected bareum to be the killer. With everything that has happened in the recent episodes, I still strongly believe bareum was the serial killer before his brain surgery. Also for people saying yohan killed halmeoni, I don't think that's true. The serial killer was the one who killed her, he admitted to killing her before he killed the priest. I don't even think yohan killed anyone

Lyr Apr 04 2021 4:25 am @sf Hmmm but in the later episode Moochi was still thinking about what the granny was holding in her hand before she died... I don’t remember Bareum tell him about granny having the photo as an evidence...maybe I missed it (?)

Syphiphus Apr 04 2021 3:23 am @Aiat, it's around eps 3 or 4, when bareum was putting bandage on the grand mother's leg after she was injured , she explained to him why Hong Yi is afraid of rain.

esuom Apr 04 2021 12:19 am . According to episode 6, someone who killed Go Mu Won is adult version of Jae Hoon.

Then I guess Jae Hoon is JBR, also the child in yellow also JBR, the aunty gave him fake photos because JBR is just adopted child so there's no childhood photos of him. Maybe Sung Ji Eun left him after the family murder. So i guess Bareum is head hunter's real son.

Anyway, you can see Bareum's photos at Yohan's basement at this episode, start at 1:12:00.

.

tiara Apr 03 2021 9:19 pm aahh can't wait for next episode... and i need more scene bongyi and bareum twogether :) I don't know why at the time bareum scene with bongyi made my heart calm ... and surely of their scenes, must have felt sad ... and also because bareum and bongyi themselves had a sad past ... especially in episode 10 very sad and when bongyi's Grandma died ... oh grandma i miss you so much ?

Aiat Apr 03 2021 4:49 pm I have a question about ep 8. Please help Before Ba reum went to look for bong yi in the rain, he remembered that the grandmother told him that something happened to her in the rain, but I don't remember such a scene. Does anybody knows something?

RphHH Apr 03 2021 12:52 pm I think it is more thrilling if JBR is the real serial killer and Yohan is not. But I doubt Korean drama will make the main cast as murderer but I love to watch one. It will also good for developing Lee Seung Gi acting skills.

youme Apr 03 2021 12:15 pm @Moon i doubt she is an unrevealed character so judging by the age of the girl (older than the little boy who is either bareum/yohan) i feel like it might be hongjoo. she also said something about the mouse having a “bad brain” and if i remember correctly later on when han seojun explains about his past experiments to bareum he also uses the term “bad brain”. hongjoo would have probably learnt/heard about “bad brain” when she used to ‘work’ for him.

Spring lee Apr 03 2021 12:13 pm hmmm must accept the real killer is Ba-Reum. okay Han Seo-Joon recognize Ba-Reum as a psychopath from the beginning. so he said Ba-Reum change after the surgery. Yes change because on his brain, he has part of YH brain that make him feel empathy, anxious, afraid, and love someone.

so when Ba-Reum meet Han Seo-Joon again, Han Seo-Joon said please don't let Yo-Han overcome you. yes he didn't want BR to be a normal person that have genius IQ. he just want Ba-Reum psychopath genes always won and didn't stop to kill people.

and now BR has delusion and feel he is not the killer but Yo-Han a killer, his memory as a killer is the real memory of him not Yo-Han.

but....i still curious about mint scent that Ba-Reum mention everytime on the murder scene. maybe his other personality? or just another serial killer. I hope the last one. hahahaha.

still a heavy feeling to accept Ba-Reum as a killer not as genius genes.

Fion Apr 03 2021 6:52 am I will be upset if JBR will be come psychopath. However, things always turn out not it seems. The one who looks like a psychopath turn out is not. The one who doesn’t looks like one, turn out he is the one. Just keep having the thrill ride :)

xtra Apr 03 2021 6:17 am The guessing game is to much for a comfort i Will wait for the next 6 episode before watching. The first 6 episode is worth watching but I think the writer is overdoing it .The plot is taking a loop and clear direction of the story might take effect after 18 episode . Expanding the story by merely giving a little crumbs after crumbs will effect the storyline. This is good if it was done in 12 Episode drama it would have been monumental but now it becomes tiring.

sf Apr 03 2021 5:14 am @Lyr Mu-chi did find a burned piece of photo in the granny hand, and from this piece, he started to investigate. JBR did tell what had happened that night. The director has used for JBR's story to Mu-chi, part of JBR voice and part of granny's voice. When you hear granny's voice telling that she has a photo of the girl, in fact, is JBR's story to Mu-chi. Rewatch the beginning of ep. 4. You will see what YH is saying (that he sometimes goes hunting randomly) after, you will see him burning the photo. Only after all these, JBR also arrives at the scene.

Ysf Apr 03 2021 1:22 am After seen episode 10, I still maintain the same stance that sung yan isn't the murderer, though I doubt the writer will make bareum a murderer also because that will render the movie useless. Also his genius brain is very useful in determining a serial killer or physchopath, using such character as a serial killer is meaningless. still remain ten episodes , so there is a lots of mind twisting plots in this drama..kudos to the writer, a must watch drama I must say. It allows one to make use of one Brain and think deep , that why most of the people commenting have different theories about the drama.

Moon Apr 03 2021 12:19 am So any idea who the little girl is who kill the running away mouse in the flashbacks?

Lyr Apr 02 2021 11:26 pm Bareum did not tell Moochi about granny having a photo of the victim which is why he never figured out what was it she was holding before she died. She even texted him too meet. Bareum is hiding a lot of things even before the “brain transplant” which is highly possible that he killed Bongyi’s granny

sf Apr 02 2021 10:58 pm Some of you saw the JBR's picture on YH's wall from the basement. I want to know, if anybody knows, in which episode was it and at what time?

CONFUSED Apr 02 2021 9:36 pm This drama is very thrilling and I also lost at the brain transplant. This drama is more than just a psychopath. I have always wondered about the title Mouse. I saw a few comments down below that JBR is just a mouse (an experimental subject) and I agree with that because if you think why would Yohan smashed JBR head and both of them ended up badly injured. In my opinion, Yohan probably stalked and monitored JBR because his dad (Han Seo Jun) needed a human experimental subject and JBR is probably the right person and I think Yohan is indeed is son and not JBR. Basically, Yohan is still alive and I think there are 2 possibilities whereas its not Yohan's brain that was transplanted in JBR and it could be someone else'e brain that actually the yellow child and young Jaehoon. It could be Yohan's too but how? Han Seo Jun would never kill his own son. Yohan could still be alive and still killing people (recent episode there were same M.O as they said) and this drama could be about a Mouse (JBR who fighting his inner demon) and a snake (Yohan who is purely a psychopath). However, it still bothers me that from first episode until recent episode that they never shows Yohan kill people(from his perspective) and also the brain transplant (they never show Yohan's face). I am looking foward to next episodes.

Tamblingbelakang Apr 02 2021 7:31 pm Just accept the brain transplant. It’s just drama after all. Just enjoy the thrill. Super exciting!

Lovely Apr 02 2021 2:02 pm I think Ba-Reum is the psychopath killer. Why? Psychopath they can make themselves known to others by being friendly and being caring. Throughout all this incident he was at all those scenes. Yet, YH was also there but some it may be a coincidence. The fake video that they made, Yo-Han wasn’t there how did he know? Beside how did he know that the priest was Mu Chi older brother. Beside, when Bong-Yi told Ba-Reum that when she fought with the killer she cut is “left arm” Ba-Reum told her that he’ll let the detectives know he did not tell anyone. And you can see he was having trouble moving his left arm. That speculated that he is the killer all along. Maybe Yo-Han know who he is so he was trying to stop Ba-Reum. You can see he has a whole wall of Ba-Reum pictures.

LEE Apr 02 2021 7:04 am oh my lord, the new episode though. *mind blown*

Im convinced that Bareum's memories are HIS not yohan's. sad to say for those people who believe he's harmless but this series is about a psychopath and he is the main lead so this is his story.

The recent episode even show him praying in the church, asking God to make him not kill other people.. it parallels the young version of Jae Hoon who also goes to church to pray and not make him a monster. LOL

The are 3 killers now, we already know Yohan commit some murders like the grandma , and the lawyer also committed the murders as well..most were the runaway teenagers... JBR's murders were those related from the bible he orchestrated... the recent episode show that the basement where the kid was kidnapped and film is different from the basement of yohan's. SOOOO..

Im convinced now that yohan is not the killer.. all evidence pointed to JBR.

Choi Hong-Ju is Park Du-Seok's long lost daughter........ and probably the kid accomplice of the head hunter....

Bareum just convinced himself that he's not the killer but he is actually the killer himself.. tsk tsk tsk. I think the auntie give him a fake photo of his younger self.. i think she know something and just hide it. there's this scene were she's acting suspiciously for some weird reason noh?

soo....

1. Bareum is the main killer.. the one who provoke the detective go mo chi and has been playing them all along... the one who kill acc to fairytales and sins from the bible... 2. the lawyer is the other killer who committed the murders of the young runaway girls 3. yohan is just investigating Bareum...looking after him and cleaning up his mess... (how can you explain the photos of Bareum in his basement right? lol) 4. PD Choi is the accomplice of the head hunter when she was young.. SHE KNOWS SOMETHING.

Bea Apr 02 2021 6:05 am Lawyer Woo lowkey looks like Jung Woo Sung hahaha. This drama is like putting together flower boys and made them into serial killer XD

Yeji Apr 02 2021 3:55 am The serial killer is bareum. He has convinced himself that those are yohans memories but they are actually his

Kirasora Apr 01 2021 11:49 pm I think Yo han kill them. I mean the 3 of them are killers first the lawyer and Yohan team up to kill since they both psycho. And bareum kills too but doesn't remember maybe he undergo to psychological hypnotist since the 3 boys mother knows dr.lee so the second mother was scared that might be bareum became more violent that's why dr.lee help them since that his research after all. And second Han seo joon operate jbr he doesn't know that he saved is also have psycho genes.

He woke up jbr psycho genes and jbr claim it was yohan his hallucinating maybe it was him after all. Thats why han seo joon is interesting to jbr because he put some parts of yohan's brain to jbr not the whole brain as he says. That's why yohans emotion and some part of yhans memories is in jbr's head. Remember he investigate jbr because he saw jbr profile.

Cat. Apr 01 2021 8:47 pm I agree with the idea that Bareum is the real killer not Yohan. Old Bareum is like a real psychophat with fake personality, but now Bareum is more emotional and smart like Yohan. If Yohan is a real killer, he can kill his friends who bullied him, but it's not happened.

Hara Apr 01 2021 6:53 pm It's soo confusing. If bareum indeed good person, then why so many scenes indicated that he is the killer. Like when yohan's mom in the hospital felt like puking when she near bareum, when bareum hit his friend (he was weak person. where did his strength comes from? Not from his brain i think). So may plotholes if it indeed bareum good person but in psycho brain. I still hope that bareum is the real killer, but he didnt realize because he thinks its yohan's brain. The story was good until this brain thing. Its turning into sci-fo dram

zai dy Apr 01 2021 5:34 pm Huh, come on!..The title of the drama speaks for itself. Bareum is just a mouse..an experimental..will he become a psychopath after his brain surgery?..as one expectation of the head hunter who made a docile mouse into a violent one...Bareum is just the be-all to all his previous mouse experiments ..

Not recommended to watch now Apr 01 2021 1:28 pm It’s not recommended to watch as of now, unless you’re a LSG fan of a crime drama fanatic. This drama contains high number of scenes with violence. Blood can be seen splattering over male lead’s face. Male lead was choking and punching a suspect. Animals are trapped in cages in Headhunter’s research lab (prove me wrong that they’re CGI) if not animal cruelty is obvious.

I don’t like how the writer treats the two male leads differently. The writer used to focus on Moo-Chi character a lot before Yo-Han’s death. Now it’s all about Bareum being all genius and doubting his own identity. Moo-Chi character is cast aside, as if his show was all done in the first few eps, and now he’s just filling in as background character for Bareum. Where is his spite and vengeance to find and kill serial killers?

This drama sets the new record of poorly made surgery scenes. It makes the Headhunter a laughing stock as he’s a well known surgeon and has been practising with needle/threads even in prison.

This drama also ridicules South Korea’s security in a police station. A journalist and a patrol officer can be walking in and out the evidence room.

Kenjak Apr 01 2021 11:51 am Jung Ba-Reum is the son of Han Seo-Joon which was switch from birth. But he lived a normal life thinking he was a normal person. Han Seo-Joon operated on him thinking he is another person's child. Did whatever he did to his brain. Yohan has psychopatic tendencies as well, remember when their mothers met at the clinic while waiting for test result while both of them are pregnant? Ba- Reum could really be the killer but he has multiple personality disorder that's why he cant seem to remember the things he did.

Quekekee Apr 01 2021 10:29 am Okay, i pick up some of viewers' deductions that sound logic to me.

1. Yohan could probably not yet died (i had the same thought at the end of the ep showing he died) 2. Part of yohan's brain was only functions as emotions towards jbr 3. The memories might be jbr's..he only believe that there are yohan's bcoz everyone around him keep telling that he is a good person 4. Choi hong ju might be the mystery girl killing the mouse (i kind of suspicious with her act tho) 5. MAYBE jbr is indeed seojun's son (even though it stated that the 2nd woman is jbr's mother..maybe they put that up just to show what we believe since the story itself shpwn that jbr's mom is that 2nd woman)

aini noh Apr 01 2021 9:41 am SPOILER ALERT!!!

Like most of us, I am 99.9% sure that the actual serial killer is Bareum and not Yohan. The memories that Bareum is having after the brain surgery are actually his own memories. I think he has always been manipulative and hid his true face before the brain surgery. That is why in ep 8 his aunt lied to him about his child/kindergarten photo as she prays that Bareum shall not remember his old killer/psycho self. Thinking about it, in the past episodes, there was no evidence that Yohan is the serial killer except for those that he actually killed (Dr. Lee, his friend, and Bongyi's grandma, but those are also suspicious?). Also, remember the scene in the church where Bongyi fight with the killer that killed Moochi's brother, she said that she stabbed the left hand of the killer. In ep 8, there was a scene where Bareum's left hand bummed to a wall and he felt some kind of pain. Not to forget that until now they have not found the kidnapped kid, that is because the one who truly kidnapped aka the serial killer is Bareum not Yohan. Yohan knew it that and that was why he went to Bareum's house to confront him but knowing that police is after Yohan, Bareum played victim/weak and manipulate Yohan to 'kill' him. Poor Yohan.. Han Seojoon even said to Yohan during the surgery "don't feel wronged". I think Han seojoon already knew that his son is not the real serial killer. That was why he decided to help the surgery because he knew that Bareum is the actual psychopath eventho he is not his son.

sf Apr 01 2021 9:15 am @dg According to Google into the frontal lobe besides other things, there is also rational judgment. That is why JBR became so clever after the surgery, and different kind of memories are situated not only in one part of the brain but in several parts of it. Also, we do not know what other modifications has HSJ done on JBR's brain during the operation. JBR wasn't smart before the surgery, and his new ability surprised even him. He knows how he was before the surgery and is conscious that something happened to him. If he is the killer seems that he killed people in the night to forgot in the morning. At this moment the only thing I can tell is that JBR behaviour changed after the surgery. Other speculations I can not make, but here many want that JBR to be the killer. I don't.

Salto Apr 01 2021 7:24 am The drama would not make any sense if Bareum (Br) started acting like that just because of Yohan's frontal lobe. So Br evolves only around Yohan ? Then what's the purpose of showing us the two mothers doing the psychopath test to there foetus ? Why is nothing clear about Br childhood and past ? Why Yohan was chasing Br and it was so important for him to get rid of him while everyone was looking for him thinking he was the sk ? He seemed very concerned and I'm sure he was ready to tell Choi Hong-Ju (the reporter) everything, and I don't think he meant his killings by "I'm going to explain to you everything". I still have faith in the drama and I'm sure Br character is way more than just a genius with a frontal lobe of a psychopath.

dg Apr 01 2021 6:42 am @sf but what if it was YH's brain that lost? I saw a comment somewhere that the purpose of the frontal lobe is mostly to do with emotions and there is nothing in it associated with memory. So what if JBR is actually the killer and what he's remembering rn are actually his memories?

sf Apr 01 2021 4:48 am Despite all the evidence, showed till now, some viewers continue to sustain and propagate theories according to their wishes, not based on evidence or what the director chooses to show us clearly.

guilty_pleasure Apr 01 2021 3:14 am Must Watch Drama !!!

I suggest if you haven't started watched drama yet, don't read comments below. Spoiler everywhere!!!!!

It very interesting & breath taking when you watch it without spoiler, trust me! It superb!!

Cupita Apr 01 2021 2:24 am @Park Mindzy, I agree with you, Bareum is not head hunter's son but son of the another woman. It's clear in the drama he is the son another woman (ep7) and after his mom died, he live with his aunt family. I think the drama about the fight of brain of psycopath (yohan) vs brain of genius (bareum). Even though bareum did not realize it before his brain operation.

Jona Apr 01 2021 2:06 am Guys try to understand that just the front lobe of the brain was transferred not the whole brain. Baruem is the sins killer and he is Han Seo Joon son because his father agreed to do the transplant. Remember that HSJ loved his child why would he sacrifice Yohan if he was his son that means that Yohan is not his son it's Baruem that's why he changed his mind. He knew that he will get a chance to meet his son(JBR) later in the future. He wouldn't reveal his lab to a random patient he saved. Yohan was not a killer he just had anti social personality and empathy. JBR got empathy from that brain tranfer. Like I said Bareum thinks he is a good guy because that's what everyone around him told him but that's just an act. He has always been calculating. He just can't remember his killing spree and thinks that it's Yohan's. Yohan knew that JBR was his mother's real son that's he ask he that she knew that her son was a killer but he could have said I. He was hurt that his mother still loved her real son and not him.He had to go through so much, YH knew that JBR was the killer and took pictures of him and spied on him. Just accept the fact that JBR is killer not all main characters should be good.

LEE Apr 01 2021 12:38 am 1. sooo... Choi Hong-Ju is Park Deo seok's daughter 2. Choi Hong-Ju didn't kill her unborn kid... 3. Bareum's brain is actually Yohan. aigoo.. i kinda lost it at brain transplant.. i find it weird though.. i don't think you can actually share memories with someone just because of brain transplant.. 4. Bareum became the real killer like for reals... i cant believe that Goo Moo chi is going to die...i mean i thought he's one of the main lead..

Because of the brain transplant thing.. i think Bareum has split personality..whenever he's distress the killer's brain takes over.

But is Yohan the killer thou???? because the past episodes shows he isn't. he even want to kill himself because he was accused as head hunter's son.. so i don't think he really kills for fun....his mother even doubts that he kills... she should know if his son is a killer because she almost kills him back then....

im guessing... bareum must be killer... he's the narrator.. i think he just lost his memories.. and that brain surgery must have click that switch...

sf Apr 01 2021 12:33 am I would say this drama was so good until YH's brain defeated BR's brain. I thought the drama would continue with the battle between the two brains, and it would end with BR's brain victory. Now all my hopes have been dashed. I will not watch the drama with the same pleasure until now.

Shie Mar 31 2021 11:50 pm How come that high risk prisoner gets out of the jail to perform a brain transplant. Hayyysss ?

Mouse Detective Mar 31 2021 11:19 pm They never showed who they got the transplanted brain from. It can be someone other than Yo Han.

Shoo Sheen. Mar 31 2021 10:34 pm Choi Ran, the scriptwriter. Thank you for all the good drama from you. Black, Iljimae, and god's gift 14 days. I can never get bored of it!

Typical007 Mar 31 2021 9:08 pm This drama was sooo good until the Brain Implant takes place.

Spoiler.

So, Han Seo Joon did implanted some of Yo Han's brain into Ba Reum's head. So the memories from the past killing Ba Reum experienced was Yo Han's. The little kid with yellow jacket was indeed Yo Han since we get to see Ba Reum when he was little. Right now it's a battle between Ba Reum real self and Yo Han's memories. He already started killing person (ep 9 and ep10 preview) but it was actually not him But Yo Han's Brain inside Ba Reum's Head. Looooool Ba Reum IS A Good Guy But The Brain Made Him The Bad Guy Now Hahaha

Lancelot Mar 31 2021 8:44 pm This is my theory. (At The Very Beginning, the two babies were switched)..

Undoubtedly, Jung Ba Reum grew up to be good because he was raised by a good parent and his father was also a righteous man, a perfect environment. He was a a dormant psychopath maybe because there may have been an accident when he was still a kid. Like a concussion or head injury in the past. Which must be the reason why he doesn't show pyschopathic tendencies.

While, Sung Yo Han did grew up to be bad, not because her mother is bad but because he had been constantly reminded that his father is the "Head Hunter", a psychopath. He was always bullied and thus developed a rage inside his heart. That must be why he became an active pyschopath. He don't want to hurt at first. But, he realizes after all in his mind they deserve to be because of how they treated him. (Remember he almost committed suicide, why? Because he can't accept the fact that what others are telling him is true, that he is a psychopath).

Remember, at the beginning there were two mothers in the same hospital. Whose sons both tested as having psychopathic genes. Unbeknownst to the two mothers, the two babies may have been switched by mistake which is not far from happening. Anyway, as the story progressed, that must be why.

Notice also, in brain implantations, the brain cannot simply accept foreign organs unless it is a match. Thus, that must be why the operation was successful because they( yo Han and ba Reum) have compatible brain organs.

Another point to consider, remember when the woman gov't official, ask this, "Why did Han Seo Joon changed his mind?" knowing that he gains nothing. Or was it nothing? We could not say that he knows Ba Reum is his son, because remember in prior episodes when his wife told him that she killed their son and he believed it. Thus, there must be an entirely different reason why he agree to it. Perhaps we will have an idea when episode 10 will be released.

Another Thing, remember their friend, Han Kook was it? There must be a reason why he's still unconscious and that must be because the actual culprit is not who we think it is. It may be Ba Reum all along. Although, we could not discount the fact that Yo Jan was also their at that time which could probably mean that either its Yo Hans doing or he witnessed what happened. Perhaps, we'll know in the future.

Anyway, all of this are just theories to tickle the mind. Feel free to think what. That's what makes this drama enjoyable to watch.

Miss Choi Mar 31 2021 8:00 pm I guess before and after brain surgery the real killer is Jung Ba-Reum.

my 2 cent Mar 31 2021 6:38 pm I get it that they want to do a plot twisting like crazy but.. it just doesnt make sense anymore. That brain implant... and feeling toward pd choi.. gosh its just a brain implant not heart whatsoever and how can all of them just connected in every way since childhood... how small is the world that more than one psychopath is living in the same town? Why would they kill an important character(Yohan) just to make that nonsense brain implant a success.. ok lets say this fantasy make sense in this drama, maybe because HH want someone who can continue the serial killer legacy so he choose his own son to be killed because he is no use anymore I guess? idk but if JBR is the real son they why would he put a normal person brain into a pshycopath brain? Then, who is Yohan real parents? Is it true that he is a psychopath too ? Did HH know that Yohan is not his real son? I dont ship any of them, either choi pd or bong yi, both of them just doesnt make sense. So I thought Choi pd had an abortion? so she did keep her baby i guess? The one that full of mystery is her, she holds every secret and I dont know either she want to protect herself or traumatised by her past. She is just a tv producer right?? Why is she acting like a detective and had any way to be in a place where she shouldnt have be? I just can get it how is it possible that they are all connected in a strange way. Yohan hold the key but they killed him..... lets just watch because I want to know how the story is going either crazy or crazier

Park Mindzy Mar 31 2021 6:34 pm There is no way Jung Ba-Reum is Han Seo-Joon child because is already clear who is Jung Ba-Reum mom, if u look at the cast of asian wiki. The only possible way that Jung Ba-Reum is Han Seo-Joon biological son is of Han Seo-Joon knocks up 2 women pregnant!!!

shock Mar 31 2021 6:09 pm gosh... i didnt know ep 9 will be painful but exciting hahahaha

sf Mar 31 2021 1:57 pm I don't like the path the drama has taken.

Mar Mar 31 2021 1:34 pm Yo Han and Ba Reum both tested with a psycho genes. But Ba Reum turned into a good person while Yo Han doesnt. I guess head hunter did something with the surgery. We knew that all of his victims were head less when found maybe he was studying the brain functions since he's a neuro surgeon. I guess that's what happened they shared brains yo han and ba reum that's why ba reum has both of their memories. Cant wait for more episodes. And i am waiting for the revelation of sherlock being the accomplice of head hunter.

MICS Mar 31 2021 1:21 pm I get it now, I was confused why Yo han's mother got anxious when she saw Bareum at the hospital in Episode 6 and whispered that she should killed her son in the past, and also why Yohan said to his mother that her mother knew his son is a murderer, and why Yohan try to kill Bareum because Yohan knew Bareum is the real son of his Mother and his trying to protect her from him.

Aiat Mar 31 2021 12:58 pm Can anybody explain me ep no 5?? Didn't the chief of the program stopped the streaming? How did they come back?

One more thing, how can the chief beat Choi hong ju like that without getting punished?

And Mu chi so annoying, he said he doesn't have anything to lose! He forget that he have a brother? I have to admit that his acting was amazing

Mickey Mar 31 2021 2:06 am Why so many Bareum's photos at Yohan's house? Did Yohan spy Bareum? Did Yohan know something about Bareum? Yohan is a son of a woman who put Head Hunter into jail. Maybe Yohan is actually a good man genetic from his mom.

sf Mar 31 2021 12:10 am If nothing has been transferred from YH to JBR, in a way or another, and all JBR's flashbacks are his, what is the meaning of the strange feelings JBR has towards the journalist? Those flashbacks should be treated together with JBR's feelings for the journalist. And I do not believe these feelings are associated with JBR's encountering as a child with the girl who killed the mouse (presuming the girl is the journalist now). His feelings are in a way like, the journalist was his girlfriend but, for sure, she wasn't

Tam Mar 30 2021 5:27 pm Well you really think yo han died? They never show us proof. Bong yi didn't really kill yohan because someone's coming when she's trying to kill yohan. And we don't know what is the meaning of the conversation of those two person(headhunter and the other) about what they are going to do with yohan.

Cupita Mar 30 2021 1:26 pm @Dee, finally there is someone who trying make good deduction based the scenes of the drama. Not just throwing weird theory about Bareum as head hunter's son without evidence on the drama. Bravo

Sha Mar 30 2021 9:02 am I still confuse who is the serial killer but one thing for sure that there are 3 psychos in this drama and I just remember that daniel lee ever said about blood test is accurate for 99% psycho and 1% is genius, maybe bareum is the 1%, it means he is the genius one and I really suspicious of detective shin.. Dont know why..

Dee Mar 30 2021 8:40 am Btw, I haven't watch ep. 8 so I might be wrong

Dee Mar 30 2021 8:14 am This drama really make me confuse.. My opinion: On eps 1-2, there are also 2 different killer. Again they mix it up. Wasn't song ju's father killed soo jung on ep. 1? Who's song ju's father btw? Didn't it get mixed up with head hunter victim? I don't really get it.. But, doesn't it mean that hong ju's father is related with head hunter? -----

on eps 3-6 there are 2 different killer, but they mix it up. I really thought that yo han is not the serial killer. He only kill grandma and daniel lee, out of 'defense' for his quiet life. So, who's the real killer for eps 3-6? I initially suspect Ba reum, but no evidence to it. -----

The base of my suspicion is from the beginning, there are 2 babies with psyco dna. I think it's yohan, the head hunter son, and bareum, as we can see in the pic with his mom on eps 7. and, the child with a mouse is bareum? While jaehoon, elementary student who kill his family, is yohan, as seen on eps 7 on his mother memory who tried to kill him for trying to bury his step brother. Doesn't it make sense?

One more, maybe bareum brain damage has awaken his psycho side, but I still hope bareum didn't jump into the psycho world

saf Mar 29 2021 1:15 pm so far what i understand is that both yo han and ba-reun might be psychopaths. one is probably the head hunters son and the other is the son of another women (probs the one who talked with the head hunters wife). from episode 2 until ba-reum went to the hospital we have only seen him as a kind person who takes care of his loved ones (we haven't seen anything to indicate that he has psychopath genes) however after he went to the hospital we saw a dramatic change in his personality. he became smarter (maybe he was always like that but he hid it before) and he even showed anger issues. i have a feeling that his personality in the first few episodes were not his full personality and he hid parts of himself but because he doesn't remember that, his real personality is showing. also after the surgery, he started getting memories of yo-han(at least that's what he thinks) i don't think that surgery he is talking about is true. i think that those memories actually do belong to him and that means he is the kid in the yellow coat. wouldn't that also mean he is the head hunters son. it doesn't make sense because then why is yo-han the head hunters son. also it doesn't make sense that the head hunter would try and save someone who isn't related to him. we haven't really been told that the kid in the yellow coat and yo-han are the same person we just assumed. also we dont actually know if yo-han is the serial killer or not. it makes sense if he killed the grandma and doctor lee we don't really know about the others. I'm 80% sure that the kid in the yellow coat is the serial killer because he was in the church and prayed not to turn out to be a murderers and said that his prayer wasn't answered and he turned into a killer. he is killing people because he is angry. however, we don't actually know who he is. now that yo-han is dead it's even less likely that he is the killer because the show is only half way through. there is however, a possibility that both yo-han and ba-reum were working together and ba-reum was the one who beat the boxer (like in his memories) and yo-han killed him.

Vn Mar 29 2021 10:08 am @cupita ,ba reum might be the head Hunter's son, because we still don't know who the baby that threw mouse at a snake at ep 1 grew up to be.

Mouse Mar 29 2021 10:04 am Spoilers : my opinion. I am 100% sure sung yo han didn't commit any of those murders, he is just a character used to misled the viewers. If you look at the killer scenes , there was no scene where he was shown to actually murder them. he is always seen amongst the crowd. Also bareum is han seo jun's son.. probably he was switched at birth with yo han..there is still another person with a psychopath Gene aside from yo han and bareum. Though I doubt if yo han is actually a psychopath

Cupita Mar 29 2021 6:51 am Why many people think bareum is head hunter'son, and come out with theory switching the baby??. It is clear that bareum is the son of another woman, even there is scene about photo of bareum together with his mom. And it also clear after his mom died he live with his aunt family. It really annoying many peolple came out with theory switching the baby. Come on that really annoying.

Koreanloverrr Mar 29 2021 5:19 am My two cents:

If you want to enjoy the drama properly then don’t mind all the ridiculous theory made by people here. From the beginning of the drama till now, none of those theories have been true. The drama is truly a thriller so you can watch and form your opinion yourself. Just stay glued to the drama and enjoy the ride.

Lyra Mar 29 2021 3:26 am

SPOILER*

Ending at episode 8....if the brain transplant is true I’m really disappointed. It’s also possible that those are Bareum’s own memories because he is the biological son of Head Hunter Yohan is definitely not the serial killer...why did they kill his character

(

Mini Mar 29 2021 12:38 am May i ask? Is that one of Jae Hoon's classmates is Moon Woo Jin?

RphHH Mar 28 2021 6:43 pm There is definitely 2 killers b4 Yohan death, Yohan maybe only kill 2 people who is Daniel Lee and grandma. Bcoz Yohan kill people fast but the other killer likes to torture his victims first.

Just Giselle Mar 28 2021 4:05 am I think Ba-Reum is the genius psychopath.

Gendered Pronouns Mar 28 2021 12:17 am Gosh, it's so difficult to understand some people's comments here because of grammatical errors. Some comments could be easily deciphered in spite of the grammatical errors but at least please use the gendered pronouns ( he / she, him / her ) properly. Thank you.

dial Mar 27 2021 10:01 pm Ehm.. this is spoiler maybe?

This is what I thought. That brain transplant thing from Yohan to Bareum did not happen, there's no way that thing exist, I believed writernim. It just Bareum's think cz he kind a fear about his own memories. Han Seojun just simply operated him and did his best to save Bareum cz they (the government) want him to do it.

The people around Bareum said that before he lost his memories he is a nice person, and he believed that. But the truth is he has 'something' inside him that he want to hide from the people he knew. So Bareum's character that we knew from ep 2 - 6 is just half (?) of him, not 100% truly him. So yes, all of that memories are Bareum's. From the yellow kid, and he beating victim no. 1, and Bareum's feeling towards Hongju.

- We still don't know if the yellow kid boy and Jaehoon are the same person or not. - And for victim no 1, we knew information that the killer killing him based on resentment and anger, and yet we still don't know what kind of grudge (?) that the killer hold to victim no 1, we still don't know what victim no 1 did to the killer before it. - And about Hongju, maybe Bareum and Hongju already knew each other so long before, even before that high school event when he did a good deeds saving Yohan from bullies with Na Chiguk. Maybe he has history with Hongju when he was a child, like we knew the yellow kid boy met a girl who killed his mouse (?), yes she is Hongju. And maybe after that young Bareum kind a close to Hongju for a while, that's why he kind a has a feeling to Hongju. So maybe in ep 2 - 6 Bareum actually already knew who Hongju PD is after he met her, but he hide those feeling and we didn't know about it.

And for Han Seojun provoked Bareum's memories, maybe he already knew who he was before he lost his memories. Maybe he already did research about him before he operated on him. After he read an article about Yohan attacked (?) Bareum, he researched about who Bareum is, or maybe he knew something from Yohan, that's why he had interest to Bareum.

But still not sure who is the real Han Seoujun's child. From birthdate, maybe Yohan, cz his birthdate in Jan if I'm not mistaken and Bareum in May. Han Seojun's wife supposed to giving birth near Christmas right? But if that's their real birthdate. Or maybe someone else, who knows?

Park Mindzy Mar 27 2021 9:03 pm • Yo Han may be Jae Hoon? The problem is Ba Ruem can’t distinguish Yo Han‘s memories and his own memories. • Ba Ruem is a psychopath but not necessarily a bad one since all the psychopathic actions are caused by Yo Han’s memories. • That maybe the reason why Ba Ruem likes Choi Hong Ju • That’s why Ba Ruem is so good at deducting murder cases and homicide cases • This allows him to think like a psychopath, thus becoming a crucial point for catching the murderer. • The problem is when Ba Ruem was tested for psychopathy, will he come out as a psychopath? • To make sure that Ba Ruem survives did they use one of the parts from Yo Han's brain to make sure Ba Ruem survives. This explains why he has Yo Han memories. • If Han Seo Jun conducted Ba Ruem’s surgery, that means he killed his own son!! Why did he kill his son?? • How will Bang Yi and Hong Ju react? • How will Mu Chi react? • Will Ba Ruem be an antagonist? • Will he teams up with Seo Jun? • Or will he use Yo Han’s memories and knowledge to do good? (seems more likely) • Will he end up with Hong Ju or Bong Yi? Hard to tell. Ba Ruem holds the memories of Bong Yi’s dead Grandma, so Bong Yi may blame Ba Ruem for everything. Is also unlikely for him to be with Hong Ju since because of Ba Ruem, Yo Han died (she may be glad to find out Yo Han loves her for real).

RANBEE GRAY Mar 27 2021 12:32 pm 3. On eps 6, when Yo Han's mother came to his house, Yo Han said "You even know your son killed" and made Sung Ji eun angry & panic (maybe fainted as if he was attacked by Yohan), what is meant here is not your son "yo han "but Jung Ba Reum is Sung ji eun's real son !! that's why he was shocked when he met Bareum in the hospital before. Sung Yohan is the second child of another husband or Yo Han whom he took at an orphanage in exchange for Jung Bareum. Sung Yo han (whose real name I forgot was in the hospital data when Go Mochi checked there) is a nice man aged 25 years, who has anorexia, so he is easily afraid of something. That's why when Doctor Daniel Lee called him, Yo Han immediately panicked and immediately met Doctor Lee, and we don't know whether Yohan actually killed Doctor Lee because his face was not shown. and also Yohan didn't kill Grandma Oh bongyi, why do I say this? remember when the old woman stabbed her stomach using iron, the perpetrator used the RIGHT hand and her face was not shown, yes the RIGHT hand !! sung Yo han is a Kidal !! and if indeed yo han panic afraid his identity will be discovered because the grandmother took a photo, why did the photo intentionally stay after being burned, looks like he deliberately slandered Sung Yo han !! Ba Reum meets Yohan at the location of the murder because Yo Han has just arrived, the original culprit who has already fled. and remember in eps 6 when Oh bongyi dueled with a psychopath who killed Go mochi's brother, he managed to injure one of his psychopath's palms with a knife, around the area of his left hand, but if yohan is a serial killer, why when checking Oh bongyi who was injured in hospital, his left hand is not injured? Likewise if the psychopath from the beginning Jung Bareum, obviously his left leg is broken & there is no wound on Bareum's left hand either .. until here understand? if there is a third party besides Sung Yohan & Jung Bareum ??

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Ranbee Mar 27 2021 12:09 pm After re-watching Episode One, I wondered if anything was missing. I draw conclusions like this

1. The little boy in yellow clothes who helps rats when it rains (the rat was the result of Han Seo Joon's test, who ran away from Doctor Lee) is Jae Hoon. Jae hoon is the son of the head hunter Han Seo Joon. but his wife Sung Ji eun (Jae hoon's mother) After giving birth, Jae hoon immediately left his child at the orphanage. and Sung Ji eun also remarried a man with Good & have children (Sung yo han). but even though he had dumped Jae hoon, he was always monitoring his progress whether he really became a bad kid or not according to the psychopath's DNA test. proven at the end of episode 1 When Jae hoon wanted to bury his younger brother, Sung Ji Eun with neat clothes suddenly appeared to help Jae Min (Jae hoon's younger brother). If Sung Ji Eun lives with Jae Hoon, why doesn't Jae Min cry and call Sung Ji Eun's Mother? then Sung Ji Eun immediately strangled Jae hoon's neck & said "You shouldn't have been born !!. But Jae hoon didn't know the woman & was amazed, because it wasn't his mother who had been in his house all this time (for information. Jae hoon's mother's face has never displayed) and her mother is also in the kitchen cooking! It is also possible that the one who killed Jae hoon's stepfather was not Jae hoon, but if his stepmother saw his father's fall position after being stabbed, it could not be Jae hoon's doing.

2.In episode 1, it was proven that there were 3 women who were pregnant at that time (in 1995), namely Sung Ji Eun (Han Seo Joon's wife), the woman who met Sung Ji Eun at the hospital and finally the wife of the Chief Prosecutor who was waiting for 10 years to have children !! I think here Doctor Daniel Lee as an expert on the Psychopathic DNA Test has lied. Why ? remember when he received the call & immediately headed downstairs with the DNA test results, there was a piece of paper on his desk but it was not shown. and also Who is the Guest who came in the black luxury car? is he Shin Sang's father? who will become a candidate for President of Korea? or the one in the car. The woman next to the president who was also pregnant? because if it's the Chief Prosecutor in the car, why don't we show it even though we already know his face & his wife is also pregnant. here Doctor Daniel Lied by exchanging the psychopathic DNA test results between the young woman who was in the hospital whose test was actually positive. Her child was not psychopathic DNA, but was changed by Doctor Daniel with the test of her child who was in the black car !! why do i say this? because the husband of this young woman is also one of the experts & help doctor Lee in the UK about this DNA test, and he did not lie to his wife, but doctor Daniel was the one who lied, Crazy !!

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Spring lee Mar 27 2021 11:33 am i still didn't understand why wu jae pil wanna kill bongyi what's matter with her? is he really the 2nd killer for this new case? or he just help cover his son?

also what is video tape that choi sent to government or president??? i didn't understand when she said this is the last effort to help yohan. hmmm maybe because that tape, han seo joon can do surgery for both of yohan and BR??

hmmmm really confused...

Ysf Mar 27 2021 11:32 am

Bareum has sungyan memory not because of brain transplant, it is because he is actually the owner of those memories, in EP 7 when bareum went to his fomer house there was a flash back where he was seen arguing with sung Yan.
Also the reason why sungyan damaged bareum's skull was because either bareum made him a murderer or he bareum is a murderer but using sungyan as a cover up.
Also you will see that sung yan's mother still could not believe that her son actually killed those people.
Also when sung Yan went to visit his father , han seo looked at his eyes he couldn't see any killer intent or psychopath looking in his sung yan eyes..even sung yan mother told the professor that her son is not a serial killer that he was wrong in his diagnosis..

Ysf Mar 27 2021 11:13 am @park mindzy go and watch episode 8 all your answers are there , ba reun brain was switch with that of the psychopath..but I think he won't be a killer because even though he has psychopath gene, there is still a normal gene in him..so it's a battle between the both gene

Park Mindzy Mar 27 2021 8:22 am Is Jung Ba Ruem a psychopath, and if he is, will he be a villain?? 1st evidence: In the last scene of episode 7, we see Ba Ruem having some sort of connection with Jae Hoon, a psychotic child in episode 1. As of now, we don’t really know an adult character name Jae Hoon, so we don’t know who Jae Hoon grows up to be. Some speculate that it was Yo Han but there was no connection between Yo Han and Jae Hoon. As the drama progresses there were some scenes that make Ba Ruem look like a psychopath, but most of them can be debunked in the next episodes or using science. In episode 6 we see Sung Ji Eun having a panic attack when she sees Ba Ruem, and we see a flashback of her trying to kill Jae Hoon. In episode 7, the last scene we see is Ba Ruem having a panic attack after looking at a mouse. We see a flashback of Jae Hoon luring a mouse and putting it in a cage. This can either be two things…. Jae Hoon is young Ba Ruem or Ba Ruem witness Jae Hoon catching the mouse and throwing it in the cage.

2nd evidence: Jung Ba Ruem’s mother had her child tested for a psychopathic gene in episode 1. Her results were positive for psychopathy or child genius. So, there is no denying that Ba Ruem is a psychopath, but he could also be a genius. A lot of the psychopaths in this drama are also geniuses, take Jae Hoon, for example, he has an IQ of 160. This is because a genius and a psychopath’s genes are so similar that even Daniel Lee (a scientist who conducts research on psychopaths) can’t tell the genes apart. Even if Ba Ruem is a psychopath, other than the last scene in episode 7, there is no direct evidence that Ba Ruem is a murderer. Although Ba Ruem being a witness of Jae Hoon catching the mouse is unlikely, it’s still possible. If Ba Ruem is Jae Hoon, he may be behind all the murderers or he can stop killing before he grows up. It’s hard to believe that Jae Hoon is Ba Ruem because we have seen in previous episodes that Ba Ruem is a wimp. Will Ba Ruem will be an antagonist?? I can’t say for sure but as of now, there is no direct evidence that Ba Ruem did something bad, that makes him punishable by law. Ba Ruem may be a psychopath but not necessarily a killer. In fact, he may be the ace of this whole story if he doesn’t become a bad guy. Ba Ruem can understand a psychopath's method of killing and may understand murders better than anyone else. He can read psychopaths better than anyone (like he read Han Seo Jun like an open book). Last but not least he is a genius, all these facts make him a key in catching this psychotic killer if he is not the bad guy. If he is the bad guy of this whole drama, then he will terrorize the whole of Korea. He has people by his side who presume him as a "too kind to be an alive" boy. He is also in the police department which allows him to find the weak point of the Korean justice system. Last but not least he has experience as a policeman and as a murderer allowing him to forge evidence to trick the policeman. What effect will this whole psychopath have on Ba Ruem and the drama?? The only way we can confirm if Ba Ruem is a psychopath is by getting him tested for psychopathy. If he is a psychopath then many possibilities may play out… • Ba Ruem may continue to pursue justice • Ba Ruem may turn to a murderer • Ba Ruem may team up with the psychotic killer • Ba Ruem may quit being a police officer but not necessarily be a murder

Why was it so hard for some to believe that Ba Ruem is a psychopath?

Mysterious- In episode 1 there was nothing about Ba Ruem’s past, and until episode 6 there was only kind and friendly Ba Ruem.

Unrealistic- in episode 6 we see Ba Ruem surviving a near-death experience. When he woke up, he had psychotic eyes, this is impossible because Psychopathy is developed before you were born. As there was nothing about Ba Ruem’s past we can’t tell that is he a psychopath or simply annoyed with the bird.

Weak evidence- with nothing on Ba Ruem’s past, viewers rely on Ba Ruem’s behavior and looks. While some episodes end with Ba Ruem looking menacing, these” possible psychopathy signs” were easily debunked a little later in the drama or using science.

He was a fragile being- there was way more evidence that shows Ba Ruem as a wimp rather than a psychopath, for god sakes he got nauseous when he saw a dead cat. Of course, that all changes after he survived the near-death experience.

He has a crush- when Ba Ruem met Choi Hong Ju a year after the near-death experience, he questioned whether he liked her. This gives the impression that Ba Ruem thinks he may like Hong Ju before and these feelings for Hong Ju continues to affect the “psychotic” Ba Ruem. In the drama it was explained that Psychopaths can’t love, the fact that he has a crush on Hong Ju makes it hard to believe that he is a psychopath.

sf Mar 27 2021 4:35 am @xyz What you said is another possibility that could have happened. But what was SJ's purpose by showing the mouse to JBR because he didn't know that the transfer has occurred?

Hobi Mar 27 2021 3:42 am Originally YoHan is the son of head hunters but after episode 6 it seems like his brain has been given to Ba Reum

xyz Mar 27 2021 2:30 am There is no such thing as brain transplant even in medical science . The main ,reason I think of the flashback in Bareum mind was the near death eye contact between Yohan and Bareum that science cannot explain but a phenomenal occurrence that is acceptable in my personal perspective.

Yohan is the son of the headhunter no question or circumstances will prove me wrong otherwise.

The headhunter was trying to communicate to Bareum that not all crime in the past was committed by him.

deln Mar 27 2021 2:16 am There's no way that Ba Reum was the kid in yellow coat. It was clear from episode 1-6 that Yo Han was a psychopath since kid. I think there's something happened (probably memory transfer from Yo Han's genes/rna???) related to Ba Reum's brain surgery after the incident. The reason why Ba Reum holds Yo Han's memory both the past and before he died.

Aya Mar 27 2021 2:09 am How if Bareum and Yohan are actually partner in crime. They did crime, but Bareum put all the blames to Yohan. They are ex schoolmate, right? I still feel Bareum before brain surgery had fake personality and no emphaty.

Maybelle Mar 27 2021 1:31 am Some people here have been saying that Jae-Hoon and the kid in yellow raincoat/yellow uniform (i.e. the kid who put the mouse in the snake cage) are two different people. Actually, that kid in yellow raincoat/yellow uniform is also Jae-Hoon when he was younger. Check out the drama's Wikipedia page and you'll see "Kim Kang-hoon as Jae-hoon" and "Seo Woo-jin as Young Jae-hoon". Even before I saw this in Wikipedia, I already concluded that the younger child was also Jae-Hoon because apart from the sequencing of the first few scenes in Episode 1, the resemblance between these two child actors is undeniable. They look like brothers! Perhaps this was the reason why they were cast to portray the same character.

Mirae Mar 26 2021 9:48 pm I think same with opinion from How and Jil. i think also same with How, i think Jung Ba-Reum was a yellow kid but the yellow kid is not Jae-Hoon. I watch this drama until episode 8, the flashbacks show in episode 8, the yellow kid do not kill the mouse, but there are a girl in episode 8 kill the mouse in this drama.

How Mar 26 2021 9:25 pm In my opinion, Jung Ba-Reum was a yellow kid (maybe he is a real son of head hunter not sure). but the yellow kid is not Jae-Hoon. Jae-Hoon is smart kid and when he (Older Jae-Hoon) killed someone, the victims' fingers point ( that he want to show it's not sin like against the god or something). I can see the yellow kid and Jae-Hoon (young) are totally different person.

Mouse Detective Mar 26 2021 8:13 pm I really don’t think that Hong Ju had an abortion. It’s too convenient that she was reinstated a year after she found out she was pregnant. My guess is that she changed her mind and secretly had the baby which she may have taken to an orphanage.....Just my thoughts.

Mouse Detective Mar 26 2021 7:54 pm Notice how the mouse that Jung Ba-Reum put in the snake cage had an incision on its head indicating that Han Seo Joon had been messing with it like the other mice. I think Han seo Joon did something to the mouse to make it more aggressive to fight a snake, the same way that someone did something to Jung Ba-Reum during his brain surgery to also bring out his more aggressive side. Remember that Han Seo Joon has a lot of fans who still do his bidding, maybe even one of Jung Ba-Reums brain surgeon.

Jil Mar 26 2021 7:10 pm Best ongoing series so far. Cant wait for the next eps.

Jil Mar 26 2021 7:03 pm Jung Ba-Reum is not the killer, the flashback is a cause of something else.

Atty (son) is the current killer in ep 7-8. The father just admitted it just to cover it up.

Hong ju is the missing kid of park du seok, and accomplice when she was still a child to head hunter. She cover up death of Yohan together with Yohan mother and the government due to backlash of public.

CPE Mar 26 2021 1:00 pm After watching Ep.8, the following are my conclusions:

1) Attorney Wu Hyung-Chul is actually the current serial killer who uses the Highway Knot to tie his victims, although his father, Wu Jae-Pil, admitted to all the serial killings. During the fake interview by Choi Hong-Ju at the volunteer centre, we can see Wu Hyung-Chul's hands clearly from his gestures. His hands are fair and slim, with a ring on his left hand. This corresponds to the killer's hand in the car when he winds down the window to talk to his female victim (Ep.7).

2) Wu Jae-Pil did find Detective Park Du-Seok's daugther years ago but did not kill her. Actually Wu Jae-Pil saved Detective Park's daughter, she grew up to be Choi Hong-Ju.

3) Choi Hong-Ju secretly visited Detective Park's house and saw his mentally ill wife gardening. Hong-Ju wore a bracelet which is recognised by Detective Park's wife where she said that it belonged to her daugther.

4) Choi Hong-Ju was the little girl who helped Han Seo-Jun lure his victims before torturing them. After the victims were tortured, Han Seo-Jun instructed her to tie the victims up by herself where she then uses the Highway Knot (which may have been taught by her biological father Detective Park Du-Seok). This corresponds to Han Seo-Jun's claim that he has never tied, learnt or taught the knot before.

5) In the hospital, Wu Jae-Pil is trying to cover up for his son by admitting to all the current crimes. When Detective Park Du-Seok heard from Go Mu-Chi that Wu Jae-Pil killed his daughter, he strangled Jae-Pil but Hong-Ju suddenly intervened by pulling Park away. When Park left, she asked why did Jae-Pil lied to Park, showing that Wu Jae-Pil did save her years ago.

6) Wu Jae-Pil saved Hong-Ju when she was young and brought her up briefly. This is when she grew up with his son Wu Hyung-Chul (not shown). Attorney Wu then learnt the Highway Knot from her when they were young. As he is a psychopath pointed out by Jung Ba-Reum, he uses this knot to tie his victims.

7) Choi Hong-Ju's did not inherit the surname "Wu" although Wu Jae-Pil brought her up. Her surname is "Choi" which is likely that she was adopted by government official Choi Young-Shin. We can see in Ep.7 where Hong-Ju sent her an old cassette tape found in the lab where Han Seo-Jun tortured his victims.

8) At the end, it is very obvious that Ba-Reum recovered because he had a brain transplant. The brain transplant operation was done by Han Seo-Jun using Sung Yo-Han's brain.

Hope the above analysis is correct as we find out more in the upcoming episodes.

M Mar 26 2021 11:56 am Yohan is the real murderer because in the flashback memories of bareum it is about seeing how did the boxer was killed. I think this is more of case solving of psychopaths' killings and proving the 1 percent genius thing. Yohan's brain was not implated to Bareum but I think, only portions of it because he still have his own memories.

Sakura Mar 26 2021 11:13 am I think Jung Ba-Reum is Jae Hoon and the real psychopath cross killer. I think Jae Hoon mom did something like switching the child to prevent the child growing up as the son of serial killer. It was Jae Hoon was who strangled by her. Jae Hoon was adopted by a family and that family get killed. Nothing was stated about Jae Hoon's mom remarried or something.

Previously Ba-Reum killed peoples by taking cover as good nature person. The doctor, Sung Yoo Han, may be accomplice or another killer. The doctor also aware of the blood status of him, either the gene result or the DNA result for father and son. Ba- Reum is now having memory loss and not remember his previous killings but still seeing flashblacks of people he killed. As brain transplant is not possible till now after so much developments in medicine.

And then again, the head hunter also had accomplices the little girl and also an organization behind. There's another killer in that organization too. The organization is still having influences that's why Jung Ba-Reum was operated by head hunter surgeon.

Yeji Mar 26 2021 11:05 am If bareum is the killer and yohan's brain wasn't transferred into him like a lot of people claim. Why did bareum see pd choi and have this feeling like he was in love with her? We all know pd choi was yohans girlfriend, so I believe part of yohans brain was indeed put into bareum

Confused Mar 26 2021 10:16 am But Jung Ba-Reum mom is in epi 1.she said that his son has also psychopath genes.the picture is in epi 7. So my guess is Jung Ba-Reum operation there is not brain swap or something?

Guiltypleasure Mar 26 2021 9:48 am Breath taking drama. Fast pacing, interesting story, great casts, great acting !!!!

The best detective drama!!!!

Kaushik Mar 26 2021 9:46 am So here is my theory of what I concluded from ep 8 . About brain transplantation I think if Jung Ba-Reum brain was exchanged with Yo Han brain, there should be only memories of Yo Han but Jung Ba-Reum is having all his memories as well so it's not possible if his brain was changed with YoHan's brain. If any of you have seen Psycopath diary you might know that the main lead after loosing his memories start acting as the serial killer coz he was having The Killer's diary and he mistook it as his own diary and concluded that he was the killer and had put on innocent act for people around him so that no one can suspect him. I think same thing is happening here Jung Ba-Reum after loosing his memories have concluded that he is innocent because of what people around him told about his character to him.

Mouse Mar 26 2021 9:31 am After watching ep 8, i think i need to take a break from being a part time detective..ive seen such mind blowing kdrama (Memorist) which they gave the answer towards who the real serial killer is on the 2nd last ep..so i think this is just too early to make any good deduction..i'll wait until the 14th ep and i'll go back to work

Miyu Mar 26 2021 9:18 am Han Seo-Joon killed Yo-Han in ICU. Because he thought it would be a waste if YH continued living. He would end up in jail, probably would get death sentence which is such a waste for Han Seo-Joon. He wants to continue his legacy through Jung Ba-Reum's brain by implanting part of Yo-Han's brain. Now Yo-Han's instinct and Jung Ba-Reum's instinct going to fight. I also think Jung Ba-Reum belongs to that 1% genius which Dr. Lee mentioned (percentage about psychopath gene and genius gene).

Probably Jung Ba-Reum will end up solving cases through YH's instinct and his instinct which will make Han Seo-Joon mad. Jung Ba-Reum was never been the killer from the beginning. But he might doubt himself cause of YH's memory and instinct. Also Choi Hong Ju probably detective park's lost daughter. And we still don't know who was Jung Ba-Reum's father. Either he was genius or psychopath. I don't think Han Seo-Joon even know Jung Ba-Reum has that gene.

JH Mar 26 2021 8:35 am Can someone explain what's with the brain surgery thing ? I don't understand :( it's too complicated

M Mar 26 2021 8:27 am So after I finished watching episode 8 tonight... All I could think about was "Holy Sh*t, Did Ba-Reum Get Drake Ramorayed????" (I hope you get the brain transplant joke lol)

Nb Mar 26 2021 7:59 am Choi PD is park hyun soo right?

Emna Mar 26 2021 7:01 am I dont think the detective is the killer .. maybe he want to protect his son (the real killer)

zai dy Mar 26 2021 5:39 am I knew it Han Seo Joon operated Bareum's Brain and and part of Yo Han's brain was incorporated into bareum's brain, and his killer instinct was awaken..that's why bareum has yohan's memory...

sf Mar 26 2021 4:38 am I don't believe that Jung Ba-Reum is SJ's son, doesn't exist any solid argument for this assumption, and still, the viewers continue to affirm this. If you take a look at the pictures above, you will see who is JBR's mother. She is the other pregnant lady from the first episode who also did the genetic test. So, one thing is clear named, who are Jung Ba-Reum parents. Why SJ operated Jung Ba-Reum? Because YH was dying, he had no chance for life. To not lose his son "abilities", SJ has transferred them to Jung Ba-Reum. Seems a little unrealistic, but it is possible that in this world, somebody already had performed this kind of operation, without the world to know. In prison, SJ showed the mouse to Jung Ba-Reum to see if the intervention had the expected result. The test revealed that the operation has succeeded. Now in Jung Ba-Reum body, live together, the old Jung Ba-Reum (a mouse) and the killer (a snake who is YH). Who will win the fight between the mouse and the snake? The little boy with the mouse must have been YH, who I presume was normal until he met his father in prison. Or maybe his transformation happened sooner when he heard MoChi that he is the son of a killer. That is why his mother told the doctor Lee that he was wrong with his test. The one who is still missing as an adult from this bucket is Jae-Hun.

Jona Mar 26 2021 1:33 am Jung Ba-Reum is the killer and Han Seo Joon's son. He must have operated Jung Ba-Reum to save him because he is his son. Jung Ba-Reum lost his memory and because of that it's very difficult for him to accept that he's the killer, which he is. Han Seo Joon just operated him but post operation to regain his memory he hears that he's a good guy and a hero from people around him. He doesn't remember that this was an act that he put to show everyone that he's stupid and simple. Only he knew that he was a killer and no one else. He has the memory of his act and the blocks are his activity of his murderous spree.

Spring lee Mar 25 2021 11:57 pm OMG....so head hunter aka han seo joon scouted for Ba-Reum brain surgery? of course he is the best neurosurgeon, but....is real he attached some part of yo han brain to Ba-Reum?? i don't think so. look like that is Ba-Reum memory. hmmm really this ep 8 the SW nim want us to pick Ba-Reum as the sin killer, but i think it will a plot twist.

also, the girl who killed the mouse. who is she?? is she choi pd?? or maybe choi pd is the killer? hahahaha, she is han seo joon accomplice on ep 1. she tied the victim with the rope.

and yes, i still feel shin shang is the killer, especially now his father run for presidential candidate. and HSJ can to be Ba-Reum surgeon because the party (rulling party i think) support him to be alive. so, they can have more secure the next candidate is from rulling party.

damn....this is not just about psychopath, but goverment politics too. hahaha

and i still didn't understand why that former detective (jae pil) admit he killed park detective's daughter. and i think he knew the real killer and choi pd too. really confusing this part.

btw....that pervert already found bong yi...damn damn.

Ranbee Mar 25 2021 11:52 pm The main point for this Drama Actually Waiting Na Chi-kook ( Police ,close friend Ba reum & one of the Victim ) Recovery from his Coma. Because His only Victim still Alive After Meet the Serial Killer... I think Ms President of Korea Knowing about this Murdered Case. Cos she's one of the Pregnant Woman 26years ago with Ba reum Mom, but Dr Daniel Lee Keep this secret . Maybe his children Born to be Psycopath Too. Humm I can't wait watching ep8 this Night hahahaha

BrainRackingMindBogglingMindF*ck*ng Mar 25 2021 11:46 pm ... Or somebody from the opposition or somebody supporting the opposition, who has control over the hospital where Ba-Reum was admitted, is trying to turn the tables and ruin the ruling party by showing the entire country that the "Nation's Son" is actually a psychopathic serial killer. *Sigh* Just theories and more theories, endless theories... This drama is indeed brain-racking, mind-boggling, mind-f*ck*ng.

Maybelle Limpingco Mar 25 2021 11:32 pm Hmmmm... I have a strong feeling all this has something to do with politics. It's either the ruling party plotting something to increase their approval ratings or coming up with something to prove that fetuses found to have the psychopath gene should go through abortion, or the opposition plotting something to ruin the ruling party. It seems more like the former, i.e. the ruling party is plotting something. This is the only imaginable way Han Seo-Joon could have been allowed to perform brain surgery on Jung Ba-Reum.

Neyra Mar 25 2021 10:52 pm At first till 6 episodes this drama is really good but after I watched episode 7&8 I doubt it. The story is too wide too compicated. It's hard to focus to understand all the mystery. People will tired watching this drama 20 episodes I can't imagine How could han seo joon could surgery seung gi while his in prison, that doesn't make sense...

Ted Blondee Mar 25 2021 10:42 pm 1. The surgery made Ba reum got the heightened sense (genius trait) from Yoo Han’s brain 2. Han Seo Joon already knew that Yoo Han is not his real son from when the two met in earlier episode. (Thus he might suspected Ba Reum as his real son). If I remember correctly, there is a scene where he suspected Sung Ji Eun (his former wife) and cursed her when he talked to the prisoner’s doctor. That’s why he saved Ba reum’s life and let Yohan died.

Ht Mar 25 2021 10:06 pm Sometimes it takes a trigger for a person to become a psychopath, after a brain damage Seungi's behavior changed. Will he be turning into a psychopath ? Or will he be able to resist into becoming one.

Gems Mar 25 2021 9:40 pm after watching eps 7, i got a clue. Jung Ba-Reum was said "the killer must be a psycopath with prefectionist traits" and i saw one scene the ending of eps 7 when jbr with KMC at the police station and the box was move and not in properly position bcs CHJ was lifting it before, and the only one knows is Jung Ba-Reum. Soo Jung Ba-Reum is a prefectionist.

Typical007 Mar 25 2021 9:14 pm Lol what is this brain switching?! I hope it's nothing like that. But why Han Seo Joon agreed to operate on Ba Reum and why they decided to end Yo Han's life?

Quekekee Mar 25 2021 8:30 pm Since someone had brought this up, i think its Shin Sang whose the killer..if you ask me why then, "i got the feel" ?

I just imagining these..remember in ep 4/5 there was a scene where a police officer pick up a phone (bareum's probably), i think it could be that bareum dropped it somewhere and shin sang gave it to him (since shin sang was at the crime scene where the phone was and bareum wasnt)..but before he handed the phone to bareum, maybe he saw the message sent by the grandma before her death..MAYBE shin sang doesnt like the fact that if grandma handed the pic she took to bareum, bareum could be promoted..so he went to kill grandma..hahaha only my imagination tho but couldnt it be possible?

Leelelel Mar 25 2021 5:34 pm Arghh im so confused now after watching ep 8. Im just not going to guess who’s the killer lol

demi Mar 25 2021 2:09 pm Attention rewatch episode 1 the answer is there

demi Mar 25 2021 2:07 pm Jung Bareum is not the killer

Jae-Hoon = Ba-Reum Mar 25 2021 1:39 pm I saw some people insisting that the kid Jae-Hoon grew up to be Yo-Han but Jae-Hoon is actually Ba-Reum. It was mentioned in the official press release of the articles about this drama that the child actor who portrays the character of Jae-Hoon would be taking on the "young Ba-Reum" role. Unless the writer has changed the plot of the drama since then, Jae-Hoon = Ba-Reum.

Ranbee Mar 25 2021 12:38 pm This is just my opinion after watching ep 7,

1.Jung Ba Reum is the real son of Han Seo Joon the head hunter & he is also a serial killer in 2020, who has killed 7 people (or maybe 8 people including Yohan's friends) following the mythology of the 7 Sins of Death.

2.Sung Yo han is Jung Ba Reum's younger brother, his mother had a child after remarrying another man, Yo Han is not a serial killer in 2020, but he has killed at least 2 people (grandmother of Oh Bongyi & Dr. Daniel Lee), because every time Yo Han kills, his face is always shown, while the other perpetrator who has killed 7 people is always keep his face a secret.

3. Miss Choi's boyfriend Yo han is the girl who appears in ep 1, who is the intermediary for the first victim. Han Seo Joon confessed when Ba Reum asked about the knot of the rope that if he worked alone, he never helped others. Means the one who killed the first victim in eps was not a headhunter, but someone else (possibly Miss Choi's father) means that Miss choi is the daughter of a murderer (not necessarily a psychopath)

4. Currently Jung Bareum has forgotten his memory (or you could say his memory of him as a serial killer is missing) because he was hit badly in the head and had an operation. So he doesn't remember anything about him having killed. Until he saw the corpse, then there was a fluttering sensation, didn't he? and he also knows very well the psychology of the perpetrators. So when he saw the mouse that Han Seo Joon was holding in prison, a little memory of his childhood appeared again which was lost (as well as breaking the fact that a 5 year old child is Yo Han)

Eps 8 might open a little more mystery ..

sf Mar 25 2021 12:10 pm Seem that Seo-Joon has played a little with Jung Ba-Reum's brain.

xtra Mar 25 2021 11:55 am 1.I agree with Zai dy but part of Yohan memory was transferred to Bareum during there near death scuttle after Yohan was gun down by Mu chi, remember the blinking of there eyes facing each other through death.

2, You cannot obviously deny Yohan Killing 3 person (Doctor. Grandma and his friend) or maybe even Song Bo Song out of revenge

3, Jaehoon aka Yohan Did not kill his Step father and his Half siblings please see Ep 1, The position of the body of his Stepfather is facing downward from the stairs,while Jae hoon is going up the stairs, there is no possibility of him collaring his father down to that awkward position just to kill him it just don't make sense. his height nor his body build does not have the probability that he killed his step father. Some one Killed them

4, The real  Psychopath is is related to the government or to the head hunter

5, Episode 1 holds the answer to all questions identifying the facts is a mere confusion in preceding episodes.

Ba Ba Mar 25 2021 9:56 am The whole drama is about elections. Mrs Choi send a parcel to party member. If you observe , there is a code that code matches with head hunter's victims. Mrs Choi's father is real head hunter. Han Seo-Joon is accomplice with real head hunter. The deity serial killer is Sung Yo-Han who is been lured to believe that he is a psycho by the opposition party so that the current party's approve rates decreases. The real villain is PO's father who is a presidential candidate. reasons: In ep 2 Dr Lee hands details about his tests(including Sung Yo-Han) to PO's father. ep 1 Mrs Choi with her father kills Song Soo-Jung thus fills responsible to hers family. It is shown in many eps that she secretly helps their family. She even mentions to Mu-Chi that Soo-Jung's family is her responsibility. Soo-Jung's hand has a code (ep1) which is similar to code on cassette in ep 7 Maybe Mrs Choi father is a dr who works with Seo-Joon on a dangerous experiment which they test on head hunter's victims. (Lab is shown in ep 7)

Naneunira Mar 25 2021 9:05 am I'm still curious, who Daniel Lee met in black car ?maybe is people in government who his wife pregnant too? This scene might be a piece of the case... i believe daniel lee keep a secret with people in government(like daniel lee switch the psychopath test result or something?) And i think, maybe at ep 1, there were 3 baby from 3 pregnant women (including jbr mom and yh mom, and 1 maybe wife of people ongovernment ) where 2 of the baby is psychopath and the other 1 not a psychopath .. maybe a baby or child who is people in goverment is psychopath too And jbr have two personality(maybe) And i think in this drama have a 2 psychopath!! (one of psychopath is jbr and one still a secret )

MIE Mar 25 2021 9:04 am @LEE Jaehoon's stepdad including his two siblings were both killed. That's why the police interrogated Jaehoon but they got nothing. It was also said that how sad that the father and his children were killed.

ge Mar 25 2021 8:28 am its shin sang yall. there was a proof that the predator left message I am God (신) can be read as sin/shin, like shin sang (신상)

Hara Mar 25 2021 8:14 am Csn anyone explain why there is a scene when woman named mrs choi is operated? Like she was about to abort her baby. And the surname choi same as choi hong ju. And the scene when choi hong ju looking for cassette in old building, like operating room. Maybe its related? Any theories?

LEE Mar 25 2021 8:11 am This is not a sci-fi series where there's a machine to transfer yohan's memories to bareum. Loool. i suggest you watch the series again. the main lead of this story is the psychopath.. who else is the main lead but Baerum.... it is already implied from the beginning.

Either he's pretending to be good and kind person OR he has a split personality.

1. When the police said that Yohan is the killer, his mother suddenly said.. "that cant be...he wont do that" it means she knows her son is not the killerrrr... and that the test results of the psychopath gene might not be his.. it might be his brother Bareum....he's cleaning up his mess...

Yohan said to his mother.. "You already know your son is a murderer"

2. When Sung Ji-Eun (Yohan's mother) visit the hospital she saw Bareum's back upon entering the door.. then she got scared and run .. flashback's of jaehoon suddenly appear (Jaehoon = Bareum)

3. There's this certain look of Han Seo-Joon and Bareum in the first episode when the police is murdered.. Bareum was all panicky and teary-eyed.. but for some reason Han Seo-joon the headhunter just look at Bareum.. (close-up scene) as if he can see the real Bareum and that it was all fake or staged...

4. There's a scene of Yohan and his gf... Yohan hugged his gf - Choi Hong-Ju.. Yohan said he was scared.. etc. i think maybe because it was the start of him cleaning up the real killer's mess... he was also investigating bareum hence there are pictures of him in his basement.. what else could it be right? He probably knows bareum is his brother and that he's the real killer...

5. The killer only kills those people who appear on TV.. In episode 3 of Mouse, it shows Bareum looking at the Han KKook crying on screen. Bareum was touched at the scene and got teary.. LOL IT could be fake or he has a double personality... who knows what's really going on in his head. Lol

6. There's something missing in Yohan vs Bareum's confrontation.. I think Yohan knows who the real killer is. He was trying to say something but then he eventually passed out...

7. Just so you know... who else is Jaehoon if Yohan already died? We are already on episode 7... Jaehoon has a very high IQ..he can even trick the lie detector test... because he can pretend nothing happened. IF he has high IQ then he can enter the police and trick all of them...

I hope on episode 8 i can finally confirm and see the real Bareum...

Vilma Sison Mar 25 2021 6:42 am nice series, hope to see Lee Seung Gi again in part 2 of Vagabond........... please

Aya Mar 25 2021 4:49 am What about the chairman and his son? Do anyone think they are maybe the killers?

zai dy Mar 25 2021 4:03 am I think part of yohan's brain ws incorporatedto bareum's during his surgery, that's why he has yohan's memory..?

MIE Mar 25 2021 4:02 am Nooo, Jung Ba Reum isn't the son of the head hunter (Han Seo Joon) and probably not an adult version of jae hoon whose the real son of head hunter.

LEE Mar 25 2021 3:05 am in episode 2, Koo Dong-Koo is a fan of the head hunter. lol, wonder if he's the accomplice or if he's the one who imitates the head hunter murder in the recent episodes. if he join the headhunter fan club then he must a bit of knowledge how headhunter kills right? he might be the one who kill Na Chi-Kook for triggering him...

Since Yohan is already dead, he can't be the other killer. the narrator since episode 1 was bareum... and he was wondering who is the other killer and psychopath like him in episode 2.

in episode 1 the head hunter and his wife live in a house like the ones in fairytale because his wife loves fairytales - the murders imitate the fairytales.. as well as he also hurt people who have strong faith in religion because he thinks God abandoned him and make him a monster. gaaaah this series is making me hurt my brain, i have to watch it twice HAHA

LEE Mar 25 2021 2:30 am This is about nurture vs nature right? but Jaehoon has a psychopath gene because of his dad (nature) and also in episode 1 he doesn't have a pleasant childhood.. was abused and left out all the time because he was weird..

his step dad was called in the school because Jaehoon apparently killed and open up the rabbit.. and then the step dad called his wife and said.. "did you know what your son did?" implying it was the wife's son and not his. then he slapped Jaehoon..BUT i don't think Jaehoon killed his step-dad..

the stepdad was upside down in the stairs with knife on.. he was stab before he fell down the stairs and then Jaehoon just saw it and then remove the knife from the body... must be the wife? maybe she accidentally killed his husband because they were abused...

I need to know where jaehoon's step siblings are...because they haven't shown it yet...

sf Mar 25 2021 2:29 am I could accept JB became a genius after his trauma, but I will very disappointed with the writer if he will turn BR into a psychopath murderer. The pleasure to watch this drama will disappear for me. And that journalist or what is she, why did she say referring to YH "I thought you are similar to me" knowing that YH is the son of a criminal psychopath? At this point, I count 4, not 3 possible suspects. I know who YH is, SJ's son, JBR is the son of the second pregnant lady, the journalist could be the third child whos gene were analysed and the fourth child is Jae Hoon. JH may be the first son of SJ.

LEE Mar 25 2021 2:14 am I watch episode 1 again.... there's this scene of head hunter picking up a mouse in the prison yard.. then the next scene was this little kid who also picked a mouse on the street... i think this is implying that the kid is the head hunter's son.......

The adult bareum likes picking up animals on the street.. and also when he woke up from the hospital last week's episode.. he killed the bird right away without even flinching.. feels like he's been doing it for long time. no guilt no remorse.

I think kid who happened to pick the mouse on the street from episode 1 was Ba-Reum's recent flash back memory when he visited the head hunter in prison in today's episode.. therefore.......Bareum is the head hunter's son...

i don't think he's the son of the other pregnant lady in episode 1.. im guessing he's the other killer that we don't know about.. maybe he's already one of the cast but... we don't know who he is... i think husband of the other pregnant lady was the guy who said that he and his wife were trying to get pregnant for 10 years and even if his son turns out to be a psychopath he wont get rid of it.

Yo-Han was probably Bareum's younger brother.. Jae-Min who always cleans up his messed since they were kids. There was a scene when the headhunter's wife visited the hospital and she saw Bareum.. she immediately panics and gets out of the hospital fast... she must have recognized her son... Jae-hoo..

i think after she tried to kill her son, she abandoned it.. and was adopted by someone else...Bareum must have lived a fake life and fake personality to blend in...

Bareum finds satisfaction in looking at his victims hurting.. like what he did to the mouse when it was attacked by the snake. Im guessing the recent killings was from the killer himself..... Bareum.. and there's also another killer that overlaps his killings as well...the son of the other pregnant lady...

Gii Mar 25 2021 1:55 am Agree with fayde and sukuna Maybe dr.lee is still alive and he is the other predator from 25 years ago and maybe he is hongju's father Yohan killed halmeoni looks real but the body thrown to river not certain. Other victims were killed by that same old other predator

Yully Mar 25 2021 1:08 am And I don't think Yohan is a Jae Hoon because Jae Hoon is an important character in this story. So, writer will not easily kill him character. Yohan died in this story. I think what he try to say to Muchi is not about Han Kook but Han Seo Joon's son. He try to give a clue to Muchi. Besides, he not came for Bongyi. He doesn't know Bongyi was stay in Bareum's house. Maybe, he want Bareum stop to put blame on him (Yohan think Bareum is Seo Joon's son and a serial killer - I'm not sure whether Bareum is a real killer, but I'm believe Yohan is not a real killer).

LEE Mar 25 2021 12:47 am y'all are wrong. Jung Ba-Reum is indeed the real killer himself, the son of the head hunter. probably the head hunter knows himself that is why Yohan was visiting him to ask him about something....... Just accept it that the main lead is the killer.. i mean why not... isn't it great that Lee Seung-Gi is exploring and making his actor portfolio diverse. IT would be his first time playing a psychopath, i think that is every actor's dream role lol. If i were an actor i will probably accept that role as well.. it would be fun to play a character where everyone is afraid of you.

Anyway...... even thou he's playing a psychopath, he's still hard to hate you know.

Jae-Hoo is bareum... the son of head hunter.. i wonder about the adult version of his step siblings, Jae Min and Jae-hee... one of his siblings were probably killers as well.. we are not sure...

Yully Mar 25 2021 12:30 am Bareum is a killer.... He forgot about it. So, when he saw dead body, he feel something (because he used to it before). Older Bareum (before memories lost) do all the killing and then his memories are lost. That's why no more killing (by serial murder). Step by step, he will remember about it. It's just my opinion as I watch ep 7. But, I sure Yohan is not a real killer. Her mom said something about her sin. And the sin she talk about I think when she took Yohan as her adopted son. So, people blame him for his father's sin (assume Yohan is real son). Yohan faced all the hated, not her real son. Yohan suffer just because she want protect her real son. And Yohan was killed also because her real son's act (police mistook him as a serial killer). If Yohan is her real son, why Yohan burn DNA result?

Kaz Mar 24 2021 11:36 pm At least Jung Ba-Reum is a bird killer

Fayde Mar 24 2021 10:53 pm Jung Ba-Reum wasn't a killer and never will be, yes he's a psychopath but not a killer I can see how the story will roll after the newest episode, they will use Jung Ba-Reum psychopath trait to help them solving the serial killer case because JBR can put himself as the serial killer(think and act like one) The plot isn't new, i hope they make some twist later on

Jsis Mar 24 2021 10:29 pm Good drama! The best drama ever ... can’t wait for upcoming episode . Highly recommended

Jini Mar 24 2021 10:28 pm Getting interesting this drama. A big thumb to the writer.

The real killer is helping the investigation and he don’t even realize he is the killer. What a fun scene to watch! Can’t wait to watch the reaction of the moo chi when they found out ba rued is the real killer. Woohooo

Fayde Mar 24 2021 10:20 pm Jung Ba-Reum wasn't a killer and never will be, yes he is a psychopath but not a killer I can see how the story will roll after the newest episode, they will use Jung Ba-Reum psychopath trait to help them catch the killers because JBR can think like the killer and act like one The plot isn't new, i hope they make some little twist later on

Sukuna Mar 24 2021 10:04 pm Jung Ba Reum is Han Seo Joon's real son, but Ba Reum is not a real serial killer. remembering the incident 10-15 years ago when Jaehoon pulled a knife from his stepfather's body. look at the position of his father carefully, not upside down right? as if pushed from the top of the stairs. I suspect that Jae Ho's mother killed her husband or someone else

Typical007 Mar 24 2021 9:22 pm Is he the killer or he's just being genius??!!

im crying rn Mar 24 2021 8:34 pm if lee seung gi is really the serial killer@psychopath , I- I Refuse To Believe . I'm really hoping the serial killer to be someone else TT

Khat Mar 24 2021 6:23 pm My speculation after watching ep 7:

I think its 100% that Jung Ba-Reum is Jae Hoon/headhunter's son/serial killer who hate god. Because Jung Ba-Reum suddenly remember a little bit of his childhood memories, Jung Ba-Reum is the child in the opening scene in the ep 1 (snake and mouse scene), so JBR is Jaehoon. All this time Jung Ba-Reum acted like an innocent pollice afficer. He is actualy an evil serial killer.

Lalal Mar 24 2021 5:24 pm Yohan is Not the killer. There’s 2. The killer and accomplice. Ba-Reum is the actual killer with the help from another psychopath person.

SPOILER❌❌

After getting his brain surgery and losing his memories, his real personality is showing. Remember, he was always shown as an innocent person,someone who is weak, loves animals, cant stand looking at dead bodies or human and animals. He is now the complete opposite after waking up. His punched to that guy in the restaurant was super strong and he seems to know alot about how a psychopath killer would killed because He Was A CrazyKiller himself....

BrainRackingMindBogglingMindF*ck*ng Mar 24 2021 5:10 pm This drama seeks to uncover whether psychopaths are shaped by "nature" (i.e. genes) or by "nurture" (i.e. environment and experience) so I guess one of the babies/children found to have the "psychopath gene" in the drama would grow up to be a good person. Could it be Jung Ba-Reum even if he had the psychopath killer instinct or even actually killed people during his younger years as Jae-Hoon? Oh well, with this brain-racking, mind-boggling, and mind-f*ck*ng kind of a drama, we could only keep on guessing until the writer reveals who the killer(s) really is(are) and if one of the babies/children found to have the "psychopath gene" does turn out to be a good person.

Nirmala Mar 24 2021 3:50 pm Spoiler Alert

Jung Ba Reum was serial killer , after getting brain surgery he was not able to play innocent and his true nature is shown. Han seo joon Knows that Sung Yo Han is not Son and there was another Psychopath Killer who was Detective Hong Ju' s father and Presidental Candidate knows that. So , the writer perspective is to Jung Ba Reum to feel the pain faced by Victims and reflect on his crimes. What a Master Piece ?‍♀️

WhereisHankook Mar 24 2021 12:56 pm Where is Han Kook? I’m on episode 7, did the writer completely forget about him ;-;

BrainRackingMindBogglingMindF*ck*ng Mar 24 2021 1:22 am Just finished watching the first 6 episodes. Can't wait to watch Episode 7 that's airing tonight. Gosh, this drama is literally brain-racking, mind-boggling, and mind-f*ck*ng! It's giving me a one-of-a-kind adrenaline rush. Lee Hee-Joon's character (Go Mu-Chi) has been the one in the limelight so far. Lee Hee-Joon's undeniably an excellent actor. I'm so impressed by his acting skills! Lee Seung-Gi as Jung Ba-Reum, though, is supposed to be the main lead of this drama / TV series at least based on how it was promoted, so a major plot twist that would put Lee Seung-Gi's character (Jung Ba-Reum) more in the limelight is really expected.

I've seen so many different theories around. My hunch is Jung Ba-Reum really was the kid Jae-Hoon. But as to how he's connected to Sung Ji-Eun, who has flashbacks of herself strangling Jae-Hoon while calling him a monster and telling him he should die, has yet to be seen. Whether or not Jae-Hoon grew up to be a psychopathic serial killer also has yet to be confirmed.

Let's all sit back, relax, and enjoy this one hell of an exhilarating 20-episode ride!

Chi Mi Mar 23 2021 2:57 pm We’re all stocked up here! We may go Psychopath before knowing the real psychopath ? some depressing stuffs happening ?? Looking forward for the next update ?

XYZ Mar 23 2021 1:50 am 1.I stand by my previous theory that head hunter have 2 son Namely yohan and another from prev. relation . The sister of Doctor Daniel whom he killed back 7 yrs after he was brought to prison . Why because Dr Daniel brother was also missing thus maybe he took him with him .’

2. Bareum has the genes but was lovingly cared and brought up by her mother. Most comment theorize him as the murderer psychopath .I think he is the child whom Jarhoon saw eye to eye in episode 1.

3. Dr. Daniel was murdered because he knows the existence of another son . Remember he talked to yohan and they agreed to meet in a secretive location .Why?

4. Yohan wants to kill Bareum because he knows that Bareum thinks he is the killer . Remember his instinct was the “mint” smell which he ist remember when they had brief scuttle and when the priest was murderred.

5. Of all the pictures Yohan posted from His hose wall Why did he not burned those picture of Bareum? For the sake of argument he knows that the police are clossing on him and its a matter of time so. He needs someone as a fall guy who but Bareum.

6. So I an 100% sure that The real Psychopath is on the loose and its not been reveal. Also have you notice the characters posted above every episode there is additional characters being shown... just athiught

Mugi Mar 23 2021 12:06 am Ba Reum is the murderer. Yohan is keeping track of Ba Reum and I think he has proof that Ba Reum is the murderer. Also he know that Ba Reum is the Head Hunter son that's why he told Ji Eun that "You know didn't you, that your son is a murderer". Also Ba Reum has many alibis that we didn't think of him as a murderer

amirpz Mar 22 2021 10:06 am Jung Ba-Reum (JBR) is the killer. he is the boy that killed his family. and the Sung Yo-Han is the head hunter's son but he is not the killer. I think JBR photographed the crime scenes and send them anonymously to Yohan. to set him up as the killer. and Yohan kept the photos to try to find out who is the killer and who is sending him these photos. remember it was JBR who saved Yohan in high school and manage to keep his own connection to him a secret. around JBR neighborhood, somebody is killing animals (cats). that's JBR. and remember during the first attempted kill, the guard in prison, JBR had the time and place to stab him and put him in the box. all of his statements regarding that day are taken as face value and basically he is not seen as a possible suspect. why? because he managed to inject himself into the investigation. Na Chi-Kook (the guard in coma), I think he is the only one who can identify JBR as the attacker. he wasn't supposed to survive and this only happened because the head hunter's interference. I think during the whole show, we (viewers) have shown more info than the cops and we assume that we knew the killer true identity (Yohan) and we are going to discover that we also have been setupped.

xyz Mar 22 2021 9:20 am rewatched all the episode I came out with this theory

1.Jaeyoon did not kill his step father and his half siblings the reason is the way his fathered died as if he was pushed upstairs and was stabbed afterwards. 2,Song Bo Gum ( boxer) was killed out of vendetta by Yohan ( aka, Jae yoon) because he saw who killed his family 3, Yohan killed the Grandma,Doctor, Daniel Song Bo gum and his friend Son Woo Yon. 4, The head hunter has two son Yohan and another one from his previous relationship which I suspect is the son Doctor Daniel sister which was taken by his missing brother. And also If you have seen the package received by Doctor Daniel one mouse was cooped in the box while the other one escaped from the boxed.

5, All along Yohan might have known that he has a half sibling who is also a killer from the conversation with the head hunter(maybe)  that why  he burned all the evidences including the file from NFS.

6. He might have also known that Bareum has the same genes and he is setting him up as the suspect. 7.The real suspect is Yohan half sibling ....the real Psychopath

Bona Mar 22 2021 4:37 am I really sure that the psycopath is Jung Ba Reum

seunggiway Mar 22 2021 3:27 am Mouse is a whole new level of thriller. The way it plays your mind with its details and gets your really engaging in different theories because woven in this complicated relationships and yet the plot is definite and solid. Other than who the true psychopath is, I'm especially looking forward and intrigued that this is inspired by real events of a 17 year old who murdered a child and had no sense of sympathy or guilt which infuriated the Choi Ran, the writer and whether Lee Seung Gi is one we are looking for is another whole meal of treat.

Jona Mar 21 2021 4:15 pm Jung Ba-Reum knew that the priest has not completely shifted and would be at that church. Jung Ba-Reum was the one who knew about the whereabouts of Han Kook through TV. Remember the tv commercial.

Sweetness Mar 21 2021 12:58 pm Guys! The killer(s) had to be someone in law enforcement. He knows too much about what is going on....like the magic trick and the fake videos they were doing. Unless that killer planted a spy cam or something on them....this is just my theory but i dont think Yo han is the killer, maybe he has a crazy mind but i think he’s trying to find his mom’s real son/head hunter’s son. Maybe BR could be the killer with the help of another person.but who knows with all these plot twists....maybe the head trauma caused the psychopath gene to come out of him lol

Busted Flower Killer Mar 21 2021 8:53 am Seunggi remind me of busted s2 flower killer.. but from my opinion there is twin psycopath.. from what i see..

Spring lee Mar 21 2021 5:05 am my opinion the serial killer is PO, with companion hong ju (you remember she lure the victim on ep 1 or 2) yes yes i know he is young actor, but please dont forget Tell Me What You Saw drama (if you watched this), the real killer is unexpected. hahahaha

the innocent,kind, and like dumb police officer but...he is the master mind and he controlled his 2 friends to cover him & help him to torture their victims.

but.....in the end ep 6, Jung Ba-Reum killed the bird, i think his psycho gene already wake up and maybe he will start to kill or wanna compete with PO or else he will haunt down PO....and maybe yes Jung Ba-Reum is head hunter son, and YH mistakenly him as a 7 deadly sin killer.

so interesting this drama.

NicoleCG Mar 21 2021 1:11 am Ep 6 ending made me sick to my core. I had a feeling this would be somewhat twisted but always have a soft spot for Seung Gi. Going to try to stick with it.

SVT Mar 20 2021 11:09 pm Oh My Gosh! The Plot Twist! I Love This Kdrama! This Is What Exactly I Am Looking For!!!!

Moo chii fighting Mar 20 2021 10:42 pm My theory= Bareum is not the killer because in episode 5 his leg was fractured and he is limp walking everywhere. plus when he was trying to catch the delivery man, he badly smashed Bareum's injured leg. Later on when the killer is fighting Bong yi his leg is perfectly fine (not limping at all). Plus none of the other murder coincides with Bareum.

Aran Mar 20 2021 9:58 pm Plot twist: Bongyi is another psychopath lol

Alleen Mar 20 2021 9:14 pm @lalala the writer is playing with you, she/he wants you to believe that yohan is the killer and put him in every murder case, but the truth is YH investigate BR because he is the real son of head hunter. Remember when BR act to make fake video recorder his first word is "ottae" same when he killed the pastor and as child he confronts god his first word was "ottae".BR is the real killer from the beginning he so smart as psycopath.

Suci Adura Mar 20 2021 9:13 pm After watch ep 5&6, I think Yohan got DNA test result stated that he is not Seo Joon's son. So, when he told her mother your son is a murderer he talk about her real son (Jae Hoon). I don't think Yohan is a killer. He came to Bareum's house to find Bareum, not Bongyi (why he try to find Bongyi in Bareum's house?) Maybe, he beat Bareum because he think Bareum is a master mind and try to put the blame on him. Or he knew Bareum is a real son and think Bareum did all this and want to make he as a murderer. Or.... Bareum provoke him. I think Bareum is Jae Hoon. But, I'm not sure whether he is a killer or not.

peachypen Mar 20 2021 6:59 pm sung yohan killed oh bong yi grandma bc he is left-handed?

Kawaii Mar 20 2021 6:31 pm Omg. Does the trauma after being hit by Yohan awake psychopath gen of Bareum??? Omggg. I don't want Bareum has the desire to kill ?? Just let Bareum be a niceee super niceee innocent cop. Pleaseee

lalalala Mar 20 2021 4:48 pm SPOLER ALERT

most of you guys assume that bareum is the culprit because some articles say that kanghoon plays young bareum (ey see on asianwiki cast please), but i think the articles just groundless because at the opening jaehoon holds yarn that connected to the doctor and the police, writer wants us to guess the future jaehoon. (that articles even written before the drama opening showed *laughs*). i rewatched closely every murder incident, chi kook's, dr. daniel's, bongyi's grandma, junsung's (yohan's friend), even pastor's. at all the moment, bareum is busy doing his activity such as preparing the show, working, helping muchi's investigation, even helping bongyi's grandma funeral (he's always accompanied by some other peoples. if you watch closely, you'll realised that pastor was killed before (sherlock hongju program). and yoohan? he's very suspicious. when chi kook incident he was at the jail but no one notice cause he didnt bring ID. on dr. daniel's, he was the one who talked and agree to meet dr. daniel, no other one knows about that. on bongyi's grandma incident, we all know he chased her since before the sun goes down and still at the murder location at night then chase by bareum (dont forget after that he took shower and all the bloods flew down plus blood on his jacket). on kim jun sung's, he drove his car on the afternoon to somewhere and after that he had no scene. and for the pastor, he saw him when sneaking into bareum's house, and i suggest you guys to watch every detail after that. *laughs*. i see that almost no one analyse from that point, that even more tickling me. i don't believe in any switches (personality/blood/etc) or adoption theory, that's just ridiculous for this kind of genre. BUT, scientifically, heavy blow on the head (damage to a specific part of the forebrain) can lead to psychophatic behavior. something big is coming~

kn Mar 20 2021 3:31 pm Sherlock Hong Ju is the killer's daughter in 1st episode. She might have the psychopath gene too, possible the killer. So far the only murder we saw with both BR and Yo Han is the murder of the grandmother (not planned). The other serial murders are still foggy.

BANDIT VON JAVA Mar 20 2021 11:24 am Perhaps Jung Ba-Reum has a latent psychopathic tendency (psychopath DNA), but if he was raised in a loving family with gentle parent(s) n never experienced violence while growing up, he could grow up to be a decent n gentle person. I recall a second pregnant woman whose foetus was analyzed to have psychopath DNA, she told Sung Ji-eun that she would try to raise her baby the best way she can, n believe that a child who has a kind, gentle father would not grow up to be a psychopath. Nature vs Nurture

BANDIT VON JAVA Mar 20 2021 11:12 am We're only at ep.6, so it's pointless trying to guess who is the real "Headhunter's son"/Jae-hoon. The ep.ends with Jung Ba-reum callously breaking Obongyi's (the bird) neck n throwing it out the window, which is really eerie... To see such a dramatic change when he was the one who had been nursing the injured bird... Perhaps his gentle nature had always had a latent cruel tendency, or the injury to his head caused by Song Yo-han's beatings triggered the psychopathic tendency to emerge... It's Nature vs Nurture debate

jo Mar 20 2021 10:15 am I guess that jaehoon is bareum. he was lost his memory when his mom tried to kill him and become a normal person. then when bareum and yohan try to kill each other, their bloods are mixed. so bareum officially become a psychopath (again) cause yohan's blood. well the thing is bareum was a psychopath but he lost his memory so he became a normal person then he met yohan and his (bareum) memories comeback. do you get it? I hope it so, well sorry for my grammar

Ira Mar 20 2021 9:54 am I am still at episode 4. Police officer Shin (P.O) is the son of the assembly man that casted his vote to against the bill for DNA test (in 1995). It seems his son is a psyco.

Yohan na Mar 20 2021 8:48 am Spoiler alert!!!

This is my theory.

Jung Ba-Reum - Is head hunter son who thinks that Sung Yo-Han is the 7 deadly sin killer and wants to revenge old lady's death.

Sung Yo-Han - is the other psychopath who investigate /search the real headhunter son who he thinks that seunggi is the 7 deadly sin killer/headhunter son. So thats why yohan and bareum try to kill each other.

On the other hand, P.O is the 7 deadly because he lied to moo chi that the DNA found on Yohan shoes is not Daniel Lee's.

Kim YounJung As Cheon Lisa Mar 20 2021 7:34 am Iam not gonna making theory like everyone, this drama make me stress out for little thing. I really hate hong ju characther, she is a burden to investigation but she is demanding a lot to mochi and didnt do anything impressive. Remember when she drinking the coffe and her careless ass make the secret information knowing by other reporter? I dont know what purpose of her existence in the drama unless there is a plot twist she is the real psycho lol

Also the whole tv show is not make sense, how can tv station aired something like that and a murder scene? Also the netizen are really annoying lol they cant do something but keep blaming on mochi for literally everything like he should to be saint first for saving another people live, its stress me out.

Dr Sunshine Mar 20 2021 6:50 am Daebak...daebak...daebak.... lee hee jun is the best??

ting Mar 20 2021 6:03 am so dizzy to guess who is the real psychopath killer. i think there will be huge plot twist after this.

Kina Mar 20 2021 5:37 am SPOILER ALERT

After i have rewatched 3 times of episodes 6 i notice something that makes me re-think again. Remember the scene where Go Muchi asked Detective Shin (Played by P.O) to checked whether the blood in the Sung Yohan's shoes is Belong to Dr Daniel Lee's blood. Then P.O said that the blood on the shoes doesnt match with the Dr daniel Lee's blood. But but but, at the scene in the police station where the two policeman said that the blood match with the Dr Daniel Lee!!! Surprising isnit??? Meaning that, P.O has lied to Go muchi!! I really really suspect that P.O is the mastermind all of this!

Maya Mar 20 2021 5:34 am Both Yohan and Bareum have psychopath gene, one is better in mimicking sympathy and emotions than the other. I also have my money on Detective Shin, Muchi's junior, as the third psychopath. His dad is the assembly chairman whose wife I think was pregnant at the same time as Yohan's and Bareum's mums. This same woman was also approached by a mysterious guy in episode 6 who informed her about Dr Daniel Lee's body (weirdly no mention about this to other characters).

Kagashi Mar 20 2021 4:58 am Im sorry, but i think Choi Hong-Ju also the pyscopath companion.. Who still remember in beginning.. That little girl is helping the killer.. The killer must be have a connection with hong ju and his son is shin sang(the one that make coffee from evidence that muchi picked) ofcos hong ju help him .. Damn im genius hehe.. Sorry for my grammar..

Horangiee sizn Mar 20 2021 4:32 am Just my opinion I think ba reum is the culprit, Yohan didn't say "iam the killer" but "your son is the killer" to Sung Ji Eun, in episode 6. But i don't care, the important thing is i really enjoyed watching this drama Mouse is my favourite thriller drama after Voice

QursyeaHusin Mar 19 2021 11:13 pm 'Swap soul '...after d accident..yeshhhhhh

Mio26 Mar 19 2021 7:23 pm Baerum can't be killer unless he swap soul with doc. He couldn't attack his friend because he was with everyone in canteen (murderer needed also a lot of time because he also put these clothes on the roof). He had also broken leg and nurse in hospital said that he should stay in hospital so it is kind impossible that he pretent. So how is possible that he could still get priest, fight with a kid and somehow get away (especially that he was on Police station before). Also it is hard to believe that he could kidnapped kid looking like that and no one would notice. I also think that there is second murderer but it is not Bareum. Baerum is just headhunter's son and probably psychopath but not active.

Betty Mar 19 2021 5:36 pm I bet the pd nim read all these comments and screaming , oh shuttt we are only on episode 6 and these people already know for sure who’s the killer . The writer need to prepare for bigger twist rather than JBR is the culprit . It’s not fun at all if JBR is really the bad guy .it’s very good movie nevertheless.

Anyonethere Mar 19 2021 1:32 pm Spoiler

The killers are Jung Ba Reum and Choi Hong Ju

Loveeeme Mar 19 2021 12:18 pm I believe dr is not the killer. He shows emotion of fear and tears. In detective’s mind he think it was Dr because of his hatred to head hunter. Dr was probably doing his own investigation on the murder victims while trying to connect the dots and found out that BR is the real son while he was the adopted son....plus they never ever shows the real killer’s face and voice if they’re trying to make us think that the killer is the Dr. Dr wanted to get rid of BR and that was BR’s plan all along to make everyone suspect the Dr.....the real killer know way too much about their plans and I suspect that BR probably planted a spy device on them...

Fizepat Mar 19 2021 12:17 pm I think yohan is the executor of every murders so far, but he is just a puppet of bareum,, who are the true self proclaimed "god". Yohan must do the murders because bareum threatening to kill Yohan closest person (his mother or hongju) which mean yohan is just the 1% genius and not a psycopath. That will explain why yohan seems never enjoy every kills he did (bcs he is normal)

chacha5 Mar 19 2021 12:00 pm I don't agree with the theories, some people are completely disregarding the fact that Yo Han is the killer, we've seen his childhood, we've seen him chase and kill people. He IS the killer, you can't change this fact. He IS little Jae Hoon. When it comes to Bareum, I have no idea what's wrong with him, but he's the other child from the other woman who got her baby tested in ep 1. He's a goody boy but also has a psychopatic gene so maybe he's switching personalities or god knows what. Or something might have changed after he got hit in the head. Yo Han is maybe interested in him because he's supposed to be like him bc of that same gene, but he's not. He's good, while Yo Han is a monster and he begged God not to make him into one. He's pissed. It looks like there is definitely some connection between those two, maybe they do know each other from childhood, or maybe not. This drama has so many twists that making assumptions so early on is basically pointless. It's also funny how some people think that Chi Kook is behind the murders? How when he's in a coma lol, makes zero sence. Some people are going overboard with the theories.

Mohana Mar 19 2021 10:53 am So jae hoon is the actual killer and lsg seems to be head hunters son. Its true that there was a post stating that jae hoon is younger version of lee seung gi but in ep 5 JBR was with the police the whole time and there would be no plot twist if he was the main killer. The only part confusing for me was when head hunter's wife got shocked when she saw JBR in the hospital this means that he is jae hoon and he is head hunters son.

One thing certain is that yo han is 100 percent not the killer and there is a high chance 3rd killer is involved because bong yi made a cut on killers arm and there was no sign of injury on both JBR and SHY so this means there is def 3rd killer involved and it is jae hoon.

The only question pending now is if jae hoon is really JBR and if yes how will the writer answers for the plot holes.

Its a loooooooooong weeeeeeeek to find out

To Illay on the comment below Mar 19 2021 10:47 am Illay, thanks for the spoiling another drama in you very first phrase, way to go!!

Lens Mar 19 2021 10:29 am This is a real brain storming psychopath kdrama. I think BaReum is the other pregnant mom’s son. In episode 1, when Jae Hoon’s dad came to meet the teacher she asked if JH still wants to become a doctor. On the scene when the mom caught him trying to kill his little brother she said ‘I should have killed you’ and notice that her face is blurred. And this scene was shown again in episode 6. I think she remarried. And They changed their names to Sung Ji Eun and Sung Yo Han. Now he’s a doctor liked he wanted to be. I’m hoping that JBR became a good guy but with the head injury it looks like he’ll change. I don’t know.....it’s confusing!

Shie Mar 19 2021 9:34 am Please don’t make Ba Ruem the bad guy ?

illay Mar 19 2021 9:16 am This is the same writer who wrote God's gift-14 days where the male lead (Jo seung woo) turned out to be the killer. Will She use the same formula again? It's an 20 episodes drama so there are so many twists left. I think the scene where the Grand mother fixed the lost button on Ba Reum's jacket might be a hint. Although Go mu chi character is a second lead, As a viewer I would think that He is the male lead if I don't read any articles about this drama. His character is too strong and the Actor does his job well. Before this drama was aired, there are articles stated that Kim Kang hoon (the young actor) was casted as young Ba Reum. There's no way the reporters wrote wrong articles just as a part to trick viewers o....r is it possible?

Ji hye Mar 19 2021 9:02 am There are two killers that's a given, they never showed the killer's face or even his real voice was hidden all along...it's as if yo han knows ba reum even the mother said he should have killed jae hook after seeing ba reum in the hospital which was quite suspicious...I think ba reum psychopathic genes will be awoken now that he got in encounter with yo han..they might switch role..the only thing I'm not sure of is who is truly jae Joon..this movie is the best suspense movie I've ever watched...I get confused each episode

Haha Mar 19 2021 8:35 am In ep 6 there's the DNA test, right? Could it be yo han test han seo joo or his mother DNA with jung bareum ? And he knew it that actually he's not the real son of his mother and the real son is actually jung bareum

Huntet Mar 19 2021 8:31 am Because ep 6, i became so confused. Why did bareum changed like that or actually he's the killer ? But if he's the killer, why there are photo in yohan underground room ?

Hafzanizah Md Gapar Mar 19 2021 8:25 am My theory is JBR knew that bong yi will call police..so he just pretend to be smashed by SYH. So det go will suspect more to SYH..

HunteRobin Mar 19 2021 8:00 am What if it's chi kook all along?

What if his being at the hospital will make him a more less suspect?

He hating the head hunter is because he is his father.

Maybe what happened to Chi kook is self-inflicted. They thought the killer is left handed, but on episode 6, Bong -yi recognized the him as a right handed person. Also when Bong-yi slashed him with the knife, she felt something on his left arm. Perhaps its a metal thing? Maybe his left arm is artificial or part of his left finger is artificial? And, in ep 2 the left finger of Chi Kook cant be attached back to him because it was too late.

I still don't think Ba reum is the Killer. If ever he is the killer, perhaps he has dissociative identity disorder. 1 is a goody-two-shoes and the other is a psychopath.

Cinta Mar 19 2021 7:34 am After watching ep 6, I think:

1. Jung Bareum is Jae Hoon. He was abandoned after the fire killed his step-father & step-siblings. His mother somehow adopted Sung Yohan and raised him up into a surgeon. Bareum lost his childhood memory 2. There're more than 1 serial killer, they work together to cover up their crime. I think they're Bareum & his friend Dong Koo. Dong Koo follows Bareum wherever he goes, he is headhunter's fan & is writing a book about psycho or something like that. 3. Hong Ju is pregnant with Yohan's child but history repeats. She will make the same question 'will I give birth to this child knowing he has a pyscho gene?' She will nurture her child to ensure he won't become a serial killer. 4. Bong Yi needs to run as fast as she can from Bareum. 5. The final countdown battle will be between Moochi and Bareum. Moochi is determined to kill headhunter's son and I'm pretty sure now Bareum is headhunter's son. 6. Dr Daniel Lee is still alive

SON HEE Mar 19 2021 7:18 am And guys, if you check out the cast list above, in the part "Jung Ba Reum's family) you'll find Lee un jung (the other woman who's pregnant with physco gene) is Ba Reum's mother, sooo... its really confusing i know. Before Eps 6, i am still sure that Yo Han is Seo Joon's son and Ba Reum is the child of the other pregnant woman. But, in the eps 6 it changes, i suspect that Ba Reum might be Han Seo Joon's son.

Also, isn't it weird how Ba Reum suddenly came to Yo Han's house like he jumped and got in very easily? Like he's been there many times??

Suci Adura Mar 19 2021 7:17 am My opinion.... Ba Reum, a son of Seo Joon. Yo Han, the other pregnant woman's son. They got switch by Seo Joon's wife. Ba Reum, also is Jae Hoon. (But, did he actually kill his family? I'm not sure...). But.... I also think the newest serial killer is Ba Reum friend who argue with Chi Kook about his adore with Seo Joon. Just opinion....

Yully Mar 19 2021 7:09 am I think Bareum is a son of older physopath, so, when he and muchi become closer muchi will feel unsure whether to make what he said to the older physopath (he want to kill older physopath infront of his son). But, I also think Bareum and Yohan are not newest physopath. I suspect Bareum friend (Dong Koo) as he argue with Chikook. It's my opinion as I watch until ep. 4.

SON HEE Mar 19 2021 7:06 am Does anyone notice the part when Bong Yi was telling Ba Reum that she might have hurt the killer hand with a knife when she was trying to fight back, theres no follow up to that till the end of eps 6. So the only person who know the fact Bong Yi slice the killer's right hand is only Ba Reum. Why Ba Reum hasnt telling anyone yet about this? I mean this is pretty important y'all!!!! I am pretty much sure, this is a piece of puzzle that will complete the whole mystery in the end somehow.

Boo Mar 19 2021 6:34 am After watching episode 6, I swear to god this drama make my head blown. This is based on my opinion: It is confirmed that Sung Yo Han is the killer of Dr. Daniel and Grandmother. But the rest of it (the five victims) probably killed by someone else. My first instinct is P.O. (Detective Shin) because I feel like it was him when I heard his altered voice during the live broadcast. The tone of his voice. I bet there is more than one killer. If JBR is the killer, that would be mind blown. Because his role as a lead is too minor for me like there is nothing special about his character. If it turns out that JBR is the killer behind all this, I swear to god he played it well. However, Sung Yo Han hurt JBR so bad that in the end of the episode, we could already see the change in JBR(his psychopath gene). It could be possible that the young Jaehoon is actually JBR. The director could be playing with our minds to make us think the young one is Sung Yo Han. I think Sung Yo Han could be dead that either P.O. (Detective Shin) or JBR will play the psychopath killer next.

Naneunira Mar 19 2021 5:48 am This daram makes me crazy because there are so many theories in it and some scenes contain unsolved theories one of which is who Daniel Lee meets who uses a black car ,maybe it is one of the people from the government who his wife pregnant and I think Daniel Lee might be keeping secrets from people in government who his wife pregnant...so i think the drama is so amazing..good job writernim

nala Mar 19 2021 4:16 am i think yohan has been seeking the real son of seojoon basic on the dna test and i think he suspected bareum. i think seojoon's son killed all the victim. but i am not sure who is he. i still don't know why yohan has the picture of the victims. where did he find all of the victim's pictures? i want to suspect him but it's odd. his shoes is too obvious, why didn't he wash his shoes? and he's afraid after he had killed daniel. yohan killed daniel because daniel knew that he's the son of seojoon, right? bareum does too but he isn't killed. he almost killed bareum on ep 6 ... still it didn't show to us why he ended up attacked bareum. who's killed the grandma? i think the drama wants to make us thinking that yohan is the killer. but i'm not sure again. bongyi knows the killer right hand. but bareum said the killer left hand, it's yohan. does it mean yohan isn't the killer of the victim? or it just tactics? if the killer is yohan, why the drama didn't show his face when he killed? bareum killed the bird ----which he saved on the previous episode----, if he's not psycho, he could free the bird. does he become psycho? or does he show he's real self? we'll see next week.

Joakin Mar 19 2021 3:08 am This is my theory this drama is really a hard to tell story twist and turn every episode... good writer! Anyway as of my theory: Jung Ba-Reum is the real head hunter son. His mother got married again had step dad and siblings but then as you know he killed them. His mother who managed to survived as according to early episode the 11 years old killed his entire family... the mother must have fought back her son and perhaps injured his evil son on the head which caused amnesia and she must have abandoned that child and lived with different name and she must have adopted another child which happened to be the son of the other woman carrying psychopath genes which I think has a twin brother who’s doing the other killings because according to Bong-Yi the guy she encountered was a right handed it’s definitely not Jung Ba-Reum at that time he still had a cast on. The other side of the coin is the link to the series of killings who definitely hates catholics.. but the doctor is not a hater of catholics it’s the boy who killed his family.. so that’s the dark side I couldn’t comprehend because the psychopath narrator 1 was the child who loves animals like the mouse from first episode and who killed his family / prayed not to be a monster.. but eventually became one. PBR likes animals from the start..now then that he had head injury and woke up back to his old self... his true nature.. and from the cliffs to next episode it looks like he’ll be a good guy again... this drama is crazy how will they pull off to appear Jung Ba-Reum as if he is still safe as the goody one to his current friends and family. The mother is the key to this roller coaster drama?

Idontknowyouzzz Mar 19 2021 2:59 am Idk why people are saying that this drama is all over the place and they can't understand. But for me.. I can totally understand the story and love it. It's been a while since I last found a drama I love this much. As for the parts that people don't understand and are complaining about, they are meant to be that way and that's what makes it a thriller.

dyampee Mar 19 2021 2:13 am I think Jung Ba-Reum became good because of having brainwashed by her mother to do "Good Things" and always being kind to others (Just like his deceased father). The last fighting scene between Jung Ba-Reum and Sung Yo-Han became a trigger for him to change (Just like Hyde and Jekyll). The Jung Ba-Reum being brainwashed by his mother was his Hyde and Jekyll would be his psychopathic self. I think there would be a conversation between the two of them that awoken his Jekyll. That Jekyll will want to prove that he is better than Sung Yo-Han so while pretending the old Jung Ba-Reum he will continue the killings just to prove that he is a better killer than the former I think with almost the same or better M.O..

Well my theory is still blurry because of the scene when the mother of Sung Yo-Han saw him and she ran away with fear. I didn't know what was the reason she puked and got scared, is it seeing Oh Bong-Yi injured talking about her grandma or seeing Jung Ba-Reum himself. IDK, this scene might give a strong impression that the HeadHunter's son would be Jung Ba-Reum.

Ash101 Mar 19 2021 1:58 am Someone here mentioned the assemblyman on episode 1, when there was a meeting discussing about testing all pregnant women for the psychopath gene , his wife was pregnant too. Also that time when the headhunter's wife met the other pregnant lady at dr Daniel's hospital he excused himself and went out with an envelope and took it to a car that was waiting outside, could it be that that was the assemblyman wanting to know about if his unborn child had the psychopath gene??? Just saying that there could be a third serial killer suspect

Mouse detective Mar 19 2021 1:47 am I stand by my earlier predictions. There are 2 serial killers. Yo Han and someone else. Even though yo Han killed dr. Lee and grandma, he didn’t kill the others. I still think that Jung Ba-Reum is a psychopath but not a serial killer. I’m actually thinking that PO is suspicious. Only time will tell.

Maic Mar 19 2021 1:33 am and the blood on the shoes of yohan was confirmed to be from the body found in the lake, that is, it is from Dr. daniel, it was not confirmed that he killed the rest, they are just guessing, they do not know, so they think it was him because they found a full shoe of blood and yohan is very suspicious obvious. and the killer is the bareum besides what I said down there is that yohan "monitored" the bareum's daily life, the wall was full of pictures of the bareum.

Maic Mar 19 2021 1:14 am Shit, like i said 2 killers And bareum is the Real deal U guys need see and hear the narration on the last minutes on episode 2 The actor is moon woo jin and he is bareum young

sf Mar 19 2021 1:14 am On the contrary with the theories mentioned below, I think that only after Jung Ba-Reum was beaten by YH, in Jung Ba-Reum mind happened a click that changed his behaviour. It was described like this even here, in the shorten description of the drama. So, I don't understand the theories mentioned here that Yo-Han is not the killer but Jung Ba-Reum. Yo-Han killed all these people, and because of him, Jung Ba-Reum could become a killer too. But I still hope that it will not happen. My question is, how come after so many hits he took, Jung Ba-Reum's face is so clean, without not a single bruise?

Papanyagio Mar 19 2021 12:53 am In ep 1-2 i tought Jung Ba-Reum (lee seung gi) is the Good Guy. But after ep 3-5 i wondering how could lee seung gi only had a little and not significance scene... there must be something wrong. And i m start to think the possibility Jung Ba-Reum is the killer. The main characters is the killer and the detective. Who play the detective role is clear. So lee sung gi must be the other main character : the killer/psychopath. And in the end ep 6, its clear lee seung gi is the psychopath. Whoaa? The writer and director is great

Hyunkyo Mar 18 2021 11:18 pm No guys. Jung Ba-Reum isn't the killer. His head was injured, and maybe that makes his little psycopath mind appeared. Lets just hope Jung Ba-Reum come to his sense again

M Mar 18 2021 10:43 pm I commented before that Jung Ba-Reum is not the killer but in the last episode, I am convinced that he is. If Yohan isn't the second child, he is adopted then he found out Jung Ba-Reum is the real son and have Jung Ba-Reum's DNA checked or he is the other mom's child, the real son of Jung Ba-Reum known family. Yohan kept DNA envelope file in the drawer when PD visited his house then burned it afterwards. One more thing that I am suspecting Jung Ba-Reum, Bongyi mentioned that she wounded the killer therefore Jung Ba-Reum instructed or planned with Yo Han to hit him so he could tell that his wound came from Yohan's beating.

I think he is also the one who let YoHan enter his house to make another video of the fake child.

Jung Ba-Reum might be the real mastermind and YoHan is his puppet so he will not be pointed out as the killer. YoHan wanted to tell the truth to his mom and girlfriend. Yohan's look also in Bongyi's room in the hospital looks like he pitied her. I also guess the flashbacks the YoHan's mom is having is Jung Ba-Reum and she is aware that JBR is killing people and the murderer conversation with Yohan is indirectly pointing to the original son, Jung Ba-Reum. I am hoping he will not die atleast yet. I can't wait for another week for the next episode.

Chaosbeat Mar 18 2021 10:36 pm Oh dammnnn good.. I think, for all the twist make me remembered defendant.. Unexpected.. Really love this drama..

Tim Mar 18 2021 10:22 pm I think yo-han indeed the head hunter's son and he probably killed his step-father and step-brother-sister but the memories haunted him. ba-reum Is the son of the other women who went to get the psychopath test when she was pregnant. from ep.6 we can see that ba-reum is the killer, he probably the master mind and yo-han could be his accomplish, he is a bit sloppy with the evidence so things get awry and the master mind decided to cut him off by spinning all murder charges on yo-han. yo-han decided he not gonna goes down by himself, might as well taking the master with him, but it was just a trap by ba-reum the killer to set yo-han up and this time they even have witnesses who see yo-han carrying out his act. well they all fall into the master's trap.

Typical007 Mar 18 2021 9:14 pm After seeing the preview for ep7, I hope Yohan isn't dead yet..

Hen Mar 18 2021 8:58 pm Gosh , after all the innocent act lee seung gi is a real killer. After the dr killer almost killed him , his blood mixed up with the dr killer blood and he has become aware that he is a psychopath ... hahaha.. first episode is equivalent to sixteen episode, and episode 6 is the final episode .. and now it still have 14 episode to go. How fascinating ? whole show make me can’t sit still, need to run away when killing happen , when killer appear I need to stand up.. never have so much excitement in drama before

Empress Ki Mar 18 2021 8:46 pm Spoilers ahead! (read at your own risk)

These are my takes after watching 6 episodes so far..

1. Jung Ba Reum (LSG) is the headhunter’s son, the current mastermind and killer. This always confused me whether he is the other baby with psychopath genes but then finally came up with the conclusion that he indeed is the headhunter’s son after seeing the headhunter’s wife visit the hospital, she saw the back of Ba Reum and suddenly had the urge to vomit and had a flashback of her strangling young Jae Hoon before. I think he might have a split personality, or is faking to have a split personality. Either way, he killed those victims, incliding granny (because you might remember when granny called Ba Reum before she died, a scene only showed Ba Reum’s back when he read granny’s message, so he might have read a message there that granny mentioned a room where victims photos were stored, and in this case, he knew Yohan had become sloppy again).

2. Yohan is not the killer, but he is acting upon Jung Ba Reum orders. Why? Like when they where still children, remeber when Jae Hoon had kill all of his stepfather’s fish in the fishtank by pouring something like ammonia, and Jae Hoon made his young stepbrother tell a lie to his stepfather by saying he doesnt know anything. Why would that scene be shown if its now connected right? Also, when Yohan with her girlfriend PD Choi, he told her he will tell her everything, so that includes all the bad deeds he is doing in covering up Ba Reum, but Ba Reum is the killer, Yohan is just doing all the dirty work like destroying evidences, bugging and such. Headhunter’s wife also hid her photograph with Yohan when Detective Ko visited since she doesn’t want Yohan to be assumed wrongly for being a psycopath son. Also, i got the hint when Yohan told his mom (HH wife) that she must have known her son is a murderer, and we all know Yohan saw Ba Reum and the HH wife interaction in the hospital. I think Ba Reum like to put Yohan in a situation that the public think of him as the Headhunter’s son, when in fact he isnt. Yohan wanted to tell everything to his gf PD Choi everything maybe because he cannot take all the killings anymore, and when I saw his tears fell when he was shot in the ep 6 ending made me convinced of this thought.

Anyway its still early considering there are still 14 episodes to go, but seeing Ba Reum killing that poor bird in the episode 6 ending made me really think that writers have now decided Ba Reum is the psycopath.

Fayehsa Mar 18 2021 7:42 pm Spoiler :::::

Been loving this fast faced drama, i just feels like the drama has ended in this 6 episode, then I see this 20 episode, what kind of story the writer will give to us, I just can't predict anything. while the story should be a high decision making, they still make some poor decision and made a fool judgement in some part. that's just part of dramatization I guess. as I hate to admit JBR is the pshycopath and the killer, scene of him killing the bird, are not the same as us. that is just writer try to made a point that JBR is the real killer. there is still a lot mystery that are still unanswered, good show!

Thelove Mar 18 2021 5:24 pm Spoiler* skip if u havent watch ep 6**

I just knew that maybe Dr. is not the killer. Im guessing he got adopted by head hunter’s wife and found her real son, did some searching and found that the real son is Jung Ba-Reum. He probably suspected that he’s the killer and wanted to get rid of him. Plus Dr. shows emotions of fear and also cried when he got shot. They also never show the actual killer’s face...might be two person working together and some one that knows of what’s going on in the detective’s office.

jokr Mar 18 2021 5:04 pm arent we glad choi jin hyuk turned the part down, lee hee jun so good. btw leeseunggi fans, dont worry about him playing the villian, he wouldnt be given the part, his acting range wont allow it.

Nirmala Mar 18 2021 5:00 pm Spoiler Alert

As I telling from Episode 2nd, Jung Ba Reum was the killer and it was proven in episode 6. Because When Old Grand ma , we didn't see Sung Yo Han burning the picture in the old lady hand and Sung Yo Han saw Jung Ba Reum killing old lady and thats why he wanted to kill him at Hospital. May be Doctor friend who was murdered also knew about murderer ( may be they both together witnessed any Killing or they are working on a project about Psychopath genes) There is one more person who is help Ba Reum ( because in church , bong yi said that the attacker is very strong who can be jae- min , little brother of Jae - Hoon).He made all evidence pointed out to Sung Yo Han and made him shot by Detective. But what my doubt is Why Doctor has all photo graphs of victims? This series is getting tense day by day , Hope so they won't make this series messy at the end ( The relief is that It's the same director who had directed COME & HUG ME which is my favourite serial

WiL Mar 18 2021 4:48 pm Omg If they make Lee Seung Gi the villain then it would be crazy, he has never taken the role of villain in any drama... He always was the good guy or heroe or at least anti-hero like Lee Joon Gi in Flower Of Evil and Moon Lovers.

Iuliaje Mar 18 2021 3:55 pm Sometimes I wonder if I am the only one or not that comes to read comments here after watching eps one by one :)). But yes, I also think that Jung Ba-Reum is the killer, all the signs go towards him. The mainly things for thinking this are because his mother is dead. He came with the idea of the fake video and played with the detective. He try to much to be near the detective and even in the show the killer said that he's a fan of him. After episode 6 I think everything is certain. And the fact that Sung Yo Han cried after being shooted shows that he has emotions and tried to put the end of crimes by killing him.

rookie detective Mar 18 2021 12:31 pm LSG is the lead obviously he's the killer, Moochi is the one that will hunt down LSG

RphHH Mar 18 2021 12:07 pm For me, the serial killer is Dr Sung Yo han but the only plot twist is that the headhunter son is actually Jung Ba Reum. So that the scientific theory about the genetic is wrong and to prove that it is unethical to abort fetus with the genes. The headhunter is too proud of his sin and want his child to inherit his animal behaviour (the reason he got married) so when he knows that his child is JBR who is so kind and gentle human being, he will be so disappointed and that means he lost in his own game.

sf Mar 18 2021 11:24 am I'm afraid of the twist that the action took on at the end of the sixth episode. I'm eager to find what has the writer prepared forwards for us?

sa Mar 18 2021 10:02 am I thought Han Seo-Joon(head hunter) was Jung Ba-Reum father !!!!!

Chaosbeat Mar 18 2021 9:49 am Eps 5 is confusing with all jump scenes..

r t Mar 18 2021 9:20 am Episode 5 is scene moved too fast. The murder of the killer friend(dr) also has not reveal it yet, then the kidnapped kick in. I really confused sometimes. The actor Lee Hee Jun did a excellent job in the acting. I need to rewatch the episode to understand what it is going on .

Reem Mar 18 2021 9:14 am I suspected the priest, but after his death it seems that Jung Ba-Reum!. I won't believe he is the serial killer. Unfortunately, all issues goes twward him. I suspected about refusing the script by Chio Jin Hyuk the second role. Either he is the vilian or the leading role is not him. BJR is the leading hero despite his little screen appearance on the drama. I think the upcoming episodes will be focused on JBr. I hope our theories aren't true and the psyco won't be on of the suspected characters.

Erza Mar 18 2021 9:12 am The main focus of this psychopath character is to judge good people to be sinners, Jaehoon hates god for not being born like normal humans in general. I think the real killer is Jung Bareum, because it seems like he's trying to camouflage to be a good person in those around him.

confusedaf Mar 18 2021 8:18 am Can someone please explain the live broadcast on ep.5? I'm really confused with the timing.. they failed to save the kid, they are forced to end the live broadcast, but then they showed throwbaxk to 10 mimutes before and Muchi's brother got killed? Wth happen I don't understand a thing?!?!?!

Stechira Mar 18 2021 8:05 am I really don't believe the killer is Jung Ba-Reum, for certain the grandmother was killed by the killer and that was not Jung Ba-Reum. I really believe it is either SYH whom all the evidence points to or shin sang whom many of you believe is the killer. Right now I am leaning towards shin sang because I can't shake off the feeling that he purposely destroyed that coffee pack. I mean how can an officer not recognize an evidence bag, Does it make sense for him to see a wrap in an evidence bag and decide to use it? that is just too suspicious to me

Laeti Mar 18 2021 7:35 am SPOILER! episode 5 I just realized..P.O. Character's name is 'shin sang', right? and at the end of episode 5 there was with blood(?) written on the wall 'I am god', which in korean is 'naega shinia', 'god' means 'shin', so maybe, just maybe, he was already indirectly telling the people who he was, without all of them realizing? I am just in general suspicious of him. the way he took that evidence coffee, pretty convenient, cause theres no way someone would be that dumb.

Vhilmajal Mar 18 2021 7:15 am The shifting of emotions is fantastics,. Suspense and thriller with matching crime solving.... Needs a lot of analytical thinking.

Koreanloverrr Mar 18 2021 6:17 am My issue is would they drag this serial killer for the whole of 20 episodes? It won’t be good if it is only one plot line of ‘the identity of the serial killer’. Though I love the drama I am getting tired of nothing really happening.

Itsme Mar 18 2021 4:15 am Wah.. some said that it might be P.O who is the seliar killer. I doubt it tho. But, perhaps he is indeed a ministry's son and turned to be genius not a psycho one. The evidebce is, he did well when prented to borrow Sung Yo-Han's friend phone. Such a clever idea. Anotger reaseon why P.O is not a killer because his acting is still green, so I doubt if the writer would give this big role to him. He's not ready yet I guess.

My theory is I am sure Sung Yo-Han isn't psycopath either. He is killer but not serial killer. (I supposed he only killed Bongyi' grandma) So, Jung Ba-Reum is still ambigous. I wonder why he had so little screen despite the drama has reached 5 episodes. As if they want give us a big surprise in coming episodes. If he just a good one, well Gu Moo Chi is best enough at being a 'good' character, we need a real villian here, and yes I suspect Jung Ba-Reum!

AL Mar 18 2021 4:14 am The killer is PO, Shin Sang The killer is Yo Han, mainly because people acused him for being pshyco The Genius is Jung Ba-Reum, He will solve all the problems with his IQ

But the writer seems to want us to predict the riddle so lets just enjoy, wait and watch

Rena Mar 18 2021 1:31 am it's Jung Bareum! Lee seunggi said at one interview that he want viewers who watched his acting in Mouse feel goosebumps!

mirza Mar 18 2021 1:16 am Bcs of this one comment that I've seen where he/she said maybe the assembly chairman Shin's son is the real villain in this drama. My mind suddenly suspect P.O. Bcs His surname is Shin. If that's true, woahh this is gonna blown my mind. And in this kdrama also, there are 3 possible villain. Sung Yo-Han, Jung Ba-Reum and P.O. Because their mothers (except P.O mom) were pregnant and have the possibility to give birth to a psychopath. Just let see how this going and I hope my prediction is true.

Aiya Mar 18 2021 12:57 am Idk why but my guts telling me the killer wasn't sung yohan or jung bareum. at ep 1, there's a scene that daniel lee gave the envelope to a person on the car while han seo jun's wife visited him, I think it's shin sungmin (assembly chairman whose wife also pregnant). it gave the hint that there were 3 person who have psychopaths' gene. and don't forget, daniel lee has said that psychopath gene also has similar type with genius gene. I think from that 3 person, there is someone who is being real psychopath and someone who is being real genius. Idk what to say if the psychopath is Jung Ba-Reum. But I'm pretty sure it wasn't Sung Yo-Han bcs kdrama never gave the surprise too early and it wasn't suprising bcs all accusations are on Sung Yo-Han. there will be plot twist ahead

Kirasora Mar 18 2021 12:35 am Wait in episode 6 (which will air later) did Sung Yo-Han go to bong yi or chi kook? and ask her/him"Did you saw his face?" (Maybe in the hospital) yknow Sung Yo-Han is han seo joon son and Jung Ba-Reum and chi kook save him and when he saw the clip from chi kook interview he suddenly have a Flash back when Jung Ba-Reum said in the hospital that he and chi kook save him from the bullies. I think this is why he kept chi kook alive (pls dont kill him!)

Since he didn't see their faces because his been dizzy that's why he failed to recognize them. And Jung Ba-Reum Know's That His The Head Hunder Son! OMG and Jung Ba-Reum knows that granny is also have DNA in Sung Yo-Han house. And since they've been bagged maybe yonghan knows too that Jung Ba-Reum is the other mother son.

Qayeed Mar 17 2021 11:02 pm It's SYH coz hes the one who called Go Moo chi and the caller is the killer and if he's not the killer why tf on ep 5 he creepin' at JBR House when they searching for the pattern of the killing and one more thing the time when it looks like JBR in front of han kook (the kidnapped kid) that is not han kook that's the fake paid kid who's asked to make a fake footage so that they can make the killer mad.

fieya Mar 17 2021 10:57 pm oh thats makes sense, since its not psychopath, the person could be ruled as a genius which why they know the human anatomy and such

Mandy Tan Mar 17 2021 10:49 pm I can't stand bongyi's character..she annoying...

Miss B Mar 17 2021 10:04 pm In my opinion. Sung yo Han is jaehon. We can see at eps 5. When Sung Yo Han's mother/ han seo jun's wife drive the car and flash back to the eps that jae hoon attacked by her and say that she regretted has given birth to jae hoon.

Typical007 Mar 17 2021 8:46 pm Jung Ba-Reum did nothing suspicious in episode 5....

nununana Mar 17 2021 8:03 pm i decided Jung Ba-Reum is the killer in one and only one scene only: - when he was getting up in Moochi's car, he hesitated because it was dirty. as far as i know (and watched) some killers are meticulous and doesn't like messy things (kind of OCD)

Han Mar 17 2021 6:35 pm What did Bong Yi do at the end of ep 5?!

Mei Mar 17 2021 6:19 pm Anyone notice that Choi Hong-Ju PD is the little girl that lure someone to get killed in a car? Or I'm wrong?

Nirmala Mar 17 2021 4:37 pm Spoiler Alert

Jung Ba Reum knows that Sung Yo Han is Han seo joon' s son from high school days or childhood days and Sung Yo Han might not be culprit because iam thinking that he is just a puppet in psychokiller hand and cover for him. Either Jung Ba Reum or another person ( identity unknown) is killer but not Sung Yo Han( but he knows who the killer is) and may be helping him

jsmin Mar 17 2021 12:52 pm we all knows that there's a high possibility that the other pregnant mother at first is bareum mother and there's a chance and I think bareum is not the murderer, just like what the other child who has a psychopath gene said at the end of ep 2 'does he become a predator like me? or a normal person unlike me.' Remembered This, This Is The Keyword

SKY Mar 17 2021 12:28 pm Honestly this drama is so suspenseful, and I feel the need to throw out another opinion. I was inspired by a Busted 2021 episode.

In this case, the Killer(s) is assumed to be Sung Yo Han. Killer(s) partly because Sung Yo Han possibly has DID and he has a JaeHoon alter ego.

Evidence 1- Sung Yo Han doesn’t remember the killing of Daniel, wakes up in blood and calls Choi Hong Ju out of fear. (He looks like a scared and helpless puppy uwu).

Evidence 2- His mother (headhunter’s wife) is not aware of his mint cologne preference.

Evidence 3- His basement room is the room for his psychopath alter ego. He went nuts when the old grandma took his prized photo.

Sung Yo Han forgets to lock door (the forgetful type) vs the meticulous psychopath killer.

SKY Mar 17 2021 7:45 am Yes @rookie detective, it’s most likely JBR who’s the serial killer. To add on to your findings, he was creeping up on Oh Bongyi that rainy day. Maybe his inner predator took control of him, after he tried to kill a human (his friend NCK).

I think there’s the possibility of him being the neighbourhood cat killer too. He threw up on purpose after seeing a corpse of a dead cat. It’s All An Act :/

RIP Hankook :’( I hope it’s a ploy to seek out SYH, hopefully you won’t get killed by JBR in the process :(

anonim Mar 17 2021 6:03 am bareum is a psycho right?bcs in eps1 Ba-reum's mother says that her son has the psychopathic gene,well jung ba-reum is a psychopath.i think he had a psycho gene from his mother. because his father died in an accident while trying to save someone. so, psychopaths can hide their identity. Because of that, Ba-reum's mother instigated Yohan's mother to continue her pregnancy

gnuahcedoc Mar 16 2021 9:30 pm Jung Ba-Reum is not a killer.He bait to lure the real killer coz he upset about bongyi grandma got killed because of him and want to revenge.Trust me i'm from the future

Kiki gerald Mar 16 2021 10:49 am Why did everyone missing the point of the psycopath's genes might lure to a genius individual rather than normal if he dosen'ent turn into psycopath?

Nevets98 Mar 16 2021 3:36 am Jung Ba-Reum is the serial killer. He is Jaehoon. Reasons: 1. Mom is dead, probably killed by himself to get the insurance money 2. Very tidy room, OCD is the habit of serial killer 3. Notice that he is always there when the killing/assault happened. Bongyi grandma, chikook, etc

Why the serial killer is not Sung Yo-Han, because he doesn't kill his mom yet. The room in his house with full of pics is that he is tracing the serial killer. And he also dislikes the idea of having children due to he himself is also possessing Han Seo Jun gene

Tswaitswai Mochaki Mar 15 2021 5:43 pm All I can say is Masterpiece. Go watch it.

Regine Mar 15 2021 9:29 am I think it's not the doctor alone who is the serial killer. If there is only one serial killer, it would not be thrilling though. Lee Seung Gi, kidnaps the boy to lured the real serial killer.

Annusacct Mar 15 2021 8:24 am So in my own interpretation, the title Mouse has something to do with the leads being subjects for the study conducted by Daniel, or in other words they are lab rats for the bill (the one in legislation) supposedly killed while still at their mothers' womb. Nice drama though kdramas lately are full of serial killers or time travellers. On the other side, looking forward on a twist in Mouse.

Annusacct Mar 15 2021 8:16 am So the killer is obviously Jaehoon. He killed Daniel for he suspects Jaehoon had already unleashed the killer in him plus Jaehoon's eomma told that Daniel's deduction was wrong. The police could easily identify him from the killing of his friend on ep 4, remember that Shin Sang caught them red handed when he borrowed Joon sung's phone. On the last scene, it can be Bareum rescuing the kid. But it doesn't eliminate the fact that Bareum can possibly be the other baby with a monster's gene

Pray Mar 15 2021 6:50 am The grandma is so nosy. She could have just taken pictures instead of taking whats not hers.

So people, teach your old relatives how to use the technology they need.

Des Mar 15 2021 5:39 am I have a feeling that its the priest.. he is the only one who have access to the prison guard who got beaten during the magic show..

Felicia Curtis Mar 15 2021 3:31 am I think lsg is the bad guy, cause he is just too nice. It's suspicious

Ana Mar 15 2021 3:04 am why the grandma....whyyyyyyy...shit..i know it would be her, but still whyyyyy

mm Mar 15 2021 2:40 am Its very obvious ba reum (Lee seung-gi ) is not the killer ( known as jae-hoon when he was young, the psychopath doctor's son ). In ep 1, there were two pregnant women who went to see Dr. Daniel to be tested positive of having their unborn babies' genes of a psychopath. One of these pregnant women was the wife of the psychopath doctor (whose serving his time in prison) and the other was the mother (whose husband died when he saving someone, i think by car/truck accident) of Ba reum. Ba reum's mother talked to the Killer's Mother, that she's going to raise Ba reum and proved to Dr. Daniel that he was wrong. That having the genes of a psychopath doesn't makes you a psychopath that does bad things.

The adult killer (young Jae hoon) has not yet identified. Its the mystery who is this guy. He might be a police office, a doctor, a lawyer. But I remember, that the killer wanted to become a doctor too just like his Psychopath Father

g.m.o Mar 15 2021 2:27 am After watching episode 4, I was suspicious of P.O. He is the politician's son who refused the proposed law about psychopath gene. I remember there were 3 mothers that did the test. It could be the one who waited dr. Daniel delivered the test result to the car is the politician. hemmmm.... cant wait for the episodes!

dianiopiari Mar 15 2021 2:15 am there were 3 children who had the psychopath gene - Sung Yo-Han is the son of Han Seo-Joon and Sung Ji-Eun - Jung Ba-Reum her father partner professor Daniel - A mysterious boy, Professor Daniel gives DNA test results to the person in the car. (episode 1), I think he's Shin Sang. Because in episode 4 he said his father was going to run for the "presidential election" (I think he's the one who determines whether the bill is passed or not) and it looks like the "coffee sachet" incident seemed to be on purpose.

like someone comment "Lincoln Rhyme: Hunt for The Bone Collector - the serial killer is someone who work in law enforcement units. One of the characters of serial killer - comeback to the crime scenes and trying to be as closer as they can be with those who investigate. No reason for killing if no one to recognize their works. "

Uli Mar 14 2021 10:28 pm Kwon Ha-Woon = Eum Moon-Suk + Son Woo-Hyun

I only watch Mouse and Hello, Me... and find resemblance hehehehe can't wait for next ep. So many theories but I'll patiently waiting for the revelation

Lili Mar 14 2021 1:49 pm I just watched ep 4 and wht going on

Denh Mar 14 2021 10:11 am I think. Ba reum just did that to detective Ko for him to find out why the grandmother die.. he is pressuring detective Ko. He just pretend to abduct the child so that he will continue with the murder case.

celinacaprice Mar 14 2021 5:12 am I just watched episode 4...towards the end, i was like... oh my! What's going on? How could that be???

demi Mar 14 2021 3:53 am Another mystery that needs to be observed is the Song Soo Jung(SSJ) murder from early Episode 1 when the little girl who is Ah Bon ji (ABJ) asked for her helped when there car slipped and subsequently was murdered by a mysterious assailant. The murderer target was SSJ actually but the father of ABJ was just being there at the wrong time, Why because he spared the little girl life and became her subsequent trauma

SSJ brother was burned by the same assailant as quoted by Detective Go Muchi (GMC) from the bible through the discovery of the bible verse "An eye for an eye, this is not the work of psycho but for the purpose of revenge. if you are confused see episode 1 where SSJ has a paper bag containing the boxing gloves

 GMC is not a murderer The assailant is the son who murdered the Song family. Psycho Yohan killed the Doctor because he knows his past as a child killing his sibling and his step father. His purpose was to cover up his past wrong doings, The murder of OBY grandmother was also for the purpose of cover up. The real Killer psycho is the son of politician who randomly kill the woman in an alley,

Typical007 Mar 14 2021 3:27 am Can we go by the logic that since Lee Seung Gi is the Male Lead so he can't be the bad guy. Haha

BananaBunny Mar 13 2021 10:03 pm Since episode 2 my instinct told me Ba Reum the killer. One of the reason is he doesn’t have parents while Yohan mum still alive. In ep. 2, the physo kid kill 3 out of 4 of his family - 2 big figure and 1 small figure in crime scene photo (I guess he kill his mother, his father and 1 of his siblings- either the younger brother or sister. I still think 1 of his younger sibling still alive.) Yohan had all the crime scene picture maybe for research purpose and I think Yohan already know Bareum kill grandma (maybe he saw everything and running coz he afraid Bareum will kill him for seeing he kill grandma) and that is why he try to inject something on Bareum IV at the hospital (if you see closely, Yohan even had sad face like he trying to hold his tears) when he hear Bongyi crying at Bareum hospital bed. If you hear closely also, aftwr killing grandma, the voice used to narrated the inner voice is Lee Seungi voice. I predict this because like Lincoln Rhyme: Hunt for The Bone Collector - the serial killer is someone who work in law enforcement units. One of the characters of serial killer - comeback to the crime scenes and trying to be as closer as they can be with those who investigate. No reason for killing if no one to recognize their works.

Pialyn Mar 13 2021 8:49 pm Nakaka stress nmn episode 4 plang??

Cinta Mar 13 2021 4:36 pm Yohan is clearly Headhunter & Jieun's son 'blessing'. When headhunter was caught, it was around Christmas / New Year season because they had Christmas tree in their home and in Daniel's hotel foyer. Jieun was heavily pregnant so Yohan was born earlier than Bareum. It is not possible for them to be switched at birth.

According to Bareum's hospital record, he was born in May 1995 so I think he's the other pregnant woman's son.

The priest is currently on my suspicious radar too. He's too mysterious atm.

Reem Mar 13 2021 3:48 pm The criminal is left-handed and the Priest Go Mu-Won left hand is disabled so no one would suspect him. I think he is the one.

demi Mar 13 2021 2:49 pm Jae hoon is Yohan.... in Episode 4 there is a brief flashback of her mother trying to kill Jae hoon the face of the mother was blurred at episode 1 for the purpose of continuity of of the guessing game and was revealed consequently on Episode 4. He is the son of the head hunter revealed in the conversation between the mother and the son during there dinner regarding him having children in the future. The exhanging of children is absurd since the Yohan mother is in advance pregnancy as compared to the other woman. Bareum personality will change because of the guilt of the death of the grand mother. Yes he has also the genes but not to harm but to instill the trap for the murderer Psychopath. It is just show how a psychopathic with genes will play cat and the mouse. As for the other psychopath maybe the writer will reveal in succeeding episode that will have a connection either with Yohan or Bareum and or with Detective Go muchi. There is also a hanging story behind Oh BongYi past trauma. lets watch the succeeding episode to see how the writer would expand the story and keep us on the edge,

Agua Mar 13 2021 12:29 pm Surely there are 2 murderers, but it is not Ba reum, I think Ba reum, he is a true son of Head honter, but he did not come out psycho. At birth they changed the children. When the 2 women were talking in chapter 1, one said that she was going to have the child and prove the opposite to Dr. Daniel Lee, This child is I have a psychopath and Sung ji eun raised him and the son Sung ji eun was raised by the other mother. The young version of lee seung gi, it was bad because his mother did it like that, they predicted it from the womb, the mother said that his father had died, he remarries and he has 2 brothers, now his family dies and they say that He killed them according to the scene, because it shows him going up the stairs and his "father" (who never wanted it, look that all the attention was for his brothers, that's why he killed the dog and the fish just to have attention) with a stab, comes out of there scratched and full of blood, for me his brother Jae-min remains alive and this is another KILLER, because he always saw the evils that his older brother did, here I think that when he goes to church and asks God, pray to God, I begged him not to let me become a monster, there his brother Jae-min listens to him, the present arrives, and he shows himself as a rookie policeman, his brother sees that he is not a murderer and it bothers him for that he leaves all those he murders looking at the cross (hating the church) meaning that God yes or good bro for Ba reum.

SonHee Mar 13 2021 12:21 pm my simple theory since the beginning was lee seung gi is the main character in this drama (OBVIOUSLY DUH?) but i noticed since the beginning that his character is so weak, he's not the main hero who chased the bad guy around since the spotlight were taken by detective go moochi. Soooo, if the hero role is taken by go moo chi, the villain must be the other lead a.k.a Ba Reum, a.k.a Seunggi!!! Because its impossible to give Seunggi the only weak role like a super sensitive new police officer who's still figuring things out. He's too damn good to only be the weak and kind one! I wasnt that surprised watching the end of 4th episode! But lets see! He's not the plain and kind guy that everybody thought he was in ep 1-3, but still wondering whether he's a complete villain throughout the whole story. This drama is so well written (at least till the 4th eps), that much i know!!!! Cant wait to watch (hopefully) another plot twist in the next episode!!!!!!

leader2392 Mar 13 2021 11:00 am Where is jae hoon after he released from police station? I'm so curious abt him

blue665 Mar 13 2021 5:59 am This drama is so damn good from the very first episode and it just gets more and more mysterious and exciting. Only 4 eps have aired so far and I hope the tension and great plot will continue till the end. All the characters and their stories are amazing, the way that drama is shot is also damn great. The cliffhangers are insane in this one. I'm loving it so far. Please, keep it up till the last ep, director!

Folusake Mar 13 2021 5:44 am This series is so mind boggling. What I know for sure is there are three with the psychopathic gene. Yo han, Ba reum and that other police officer whose father is a politician because after that doctor attended to Jae Hoon's mother, he went outside and gave a test result to someone inside a black car, giving an incline of being affluent, so probably that child is the police officer.

Also, that priest is suspicious too. Everybody suspects Yohan but there are at least two killers. I can't wait for the coming weeks.

XYZ Mar 13 2021 4:59 am Follow up for my theory that GO MU CHI is behind this murders, I think he is angry by the justice system, because until now Han Seo Jun is alive and he is doing all of this and at the end he wants to get caught just to kill Han Seo Jun by himself. The murders show that the fingers is always pointing at the cross, and we all know Go Mu Chi is angry at his brother which is a Priest. Also I think to provoke Han Seo Jun's son.

M Mar 13 2021 4:47 am It says in the characters above that the son of the other woman who volunteered to be tested is bareum's mom. Therefore, he has psychopath gene but I think he's not the killer because his mom told Yohan's mom that the baby's father in his womb saved a life before he died. Maybe the writer are telling here that he might have 99percent psychopath gene but the remaining 1 percent could change it. I'm only about to start ep3 because Im kinda terrified but the story is so intriguing as well as the people's theories here so Imma keep watching it.

Jeee Mar 13 2021 4:42 am I do think that p.o is the murderer

XYZ Mar 13 2021 4:27 am All of your theories are wrong HAHAHA. Nobody suspect him but I have a feeling that GO MU CHI is doing all of this, he wants to show Han So Jeon that he can kill because Han So Jeon said that he can't kill. Except granny of course, she is killed by Yohan. I think there is something in Go mu chi's mind of why he is doing this and I think it has a connection in the past

rookie detective Mar 13 2021 3:16 am spoiler alert! my opinion bareum is the serial killer after i watched ep 4 because: 1. the bird scene that he almost been hit by the police 2. the serial killer is right handed same like bareum 3. he didn't even cry when halmeoni died 4. he cried when watching the poor kid on tv is just him practicing to hv emotions like the scene in Flower of Evil 5. halmeoni keep on talking about marriage to bareum is as a hint from the writer to show that a serial killer are obsess on having their own child like how han seo jun are desperate to marry to hv a child 6. he killed those victims except halmeoni and dr lee because it shows from the way him and yo han kill ppl were different. yes halmeoni and dr lee were killed by yo han.

why yohan is not the killer: 1. he's left handed 2. he didn't like the smell of blood after he killed halmeoni 3. he have the feeling of scared from the scene where he hugged his gf 4. i got a feeling he is the one that were bullied during teens days and bareum and na chi kook saved him then they were friends but yohan know about bareum and he tried to investigate about his killings

another theory: P.O is the killer because he is the son of the politician, he had the psychopath dna, AND WHY DOES HE DRINK THE COFFEE WHEN THAT COFFEE SACHET IS BASICALLY INSIDE THE EVIDENCE PLASTIC and there must be a reason that writer create the character of him being the son of the politician, why should we know he is the son of the politician when he's just a side character so there must be a reason why the writer emphasise it.

Axion Mar 13 2021 2:20 am Man this tv drama is so worth watching.

hana Mar 13 2021 1:04 am The first episode opens up with a girl alluring someone to get killed in a car. That girl was the female cop. It will circle back as her being the mastermind of everything, she may not kill but she may instigate or manipulate the 2 psychopaths into committing murder by using their weakness. Not only genes but also the environment children grow in can shape who you will actually become.I think this the essence of the movie, as people are not born evil but made evil.

Zahra Mar 13 2021 12:18 am I have this feeling that bareum is the one that attempted to kill Na chi kook, this drama is so intriguing. Can't wait for next week

maic Mar 12 2021 9:14 pm after all they haven't shown bareum's past yet, and obviously his mother is the other woman who did the dna test.

maic Mar 12 2021 9:11 pm but I still think BAREUM is also a killer, because of the narration of the child actor Moon woo jin who plays the bareum child at the end of ep 2

maic Mar 12 2021 9:09 pm @Sagar is not kyung soo jin, she ever die on the dramas maybe she will die on it soon too lol cause she is 'girlfriend' or a friend of yohan so early or late she will be taken as victim cause she know yohan

Sagar Mar 12 2021 7:25 pm Everybody is commenting on how lsg or priest or yo han can be the killer. What if the psycopath is the woman reporter. No one can guess it. Also female psychopaths are rarer than male psychopaths. Mind boggling isn’t it!

Tia Johnson Mar 12 2021 7:25 pm I’m calling it now. Neither of them are the serial killer. It’s a third person. Both are chasing after the real killer but suspect each other because they’ve been told they were born with the psychopath gene. I need to know more about the Priest and that Friend who hangs around crime scenes for his “movie”

Lee Chaeyoung Mar 12 2021 4:05 pm SPOILER ALERT! I don't think the Doctor is the "real killer" I mean, yeah he's "one of the killer" but I think "he's not the only one." Do you still remember the "lady" who approaches Doctor's Mother on the episode 1? She took the so-called-DNA test and the child in her womb got "positive" Right? I don't know but I'm waiting for that "child"

When I watched the episode 3, LEE SEUNG GI'S character became suspicious to me. When LSG and the Doctor "stare to each other" in the hospital, suddenly, I think *maybe, just maybe* LSG is the "psychopath child in the womb of that lady" in episode 1 that I'm talking about. If he is the "psychopath", right now he's in the right track to manipulate everything. Well, let's see. It's just my theory. I'm not sure if I got it right. Haha.

And after watching the episode 4.. BINGO! Some of my so-called theory was right. HAHAHA!

Mouse Detective Mar 12 2021 4:01 pm I think that there’s a minimum of 2 serial killers, Yo Han and the priest. Yo Han is probs a psycho thru nature and the priest thru nurture(his parents murder probs did a number on him). Lee Seung Ki is also probably a psychopath without serial killer tendencies. He’s pretends to be really loveable but hides his psycho and genius nature.

Zervien Mar 12 2021 3:35 pm Shin sang is 3rd psycopat, maybe he is the killer.

Tina#Tz Mar 12 2021 2:18 pm Damn i should have waited and watch when its all out

Tina#Tz Mar 12 2021 2:13 pm Today the comment section is much more informative than the next episode hahaha we have quite a lot of writers and every guess is kinda convincing hahaha

Reem Mar 12 2021 1:18 pm I think that the Killer is the Priest Go Mu-Won

maic Mar 12 2021 1:07 pm oh, i said seo woo jin on my other post but i writter wrong is Moon woo jin not Seo woo jin ok? so let me talk again. ok. I think the two of them are obviously murderers. because the killer's son is yohan. and Bareum look why he is a murderer At the end of ep 2 when the yohan and bareum face each other at the hospital, the child actor moon woo jin narrates "I was always curious to know about the other child with the genes even though mine, what happened to him? became a predator like me? " something like. and actor moon Woo jin, is the child version of Bareum on the Hancinema website it shows the cast and who he is, not on asianwiki, not least because his voice only came out so far. take a line from actor moon woo jin on youtube to hear his voice and hear the narration at the end of ep 2. bareum is the killer, and yohan is also.

Rety Mar 12 2021 11:57 am I think jung ba reum is psychopath. He is the kid that diagnosed have the psychopath gen. Remember in episode 2 when the dr Lee diagnosed two women that their kid have psychopath gen.

Songminseo Mar 12 2021 9:49 am Im not into thriller but Mouse is into different level. I'll be missing part of my life if i wont watch it..episode 4 is just so nerve wracking.. when i saw lsg with the kid make me want to scream out of shocked.. i never suspected him to be that way. I mean he's so soft in previous episodes.. the story progresses too fast... and now im so hooked that waiting for the next episode is literally killing...

synn Mar 12 2021 9:24 am go mu-chi, why u need 20 episode to catch a suspect, ha. .h

Blxnicotine Mar 12 2021 7:42 am It seems i watched too much mistery, crime tvshow that i already called that twist on ep 4. That was satisfying, ngl.

Ha Mar 12 2021 7:40 am This is confusing haha. But I do remember in the earlier episodes, the child that narrated, said that there's someone just like him?

Yo-han is definitely Jae Hoon right, since he has a picture of the young child in yellow uniform in his room.

I am with the opinion that perhaps Ba-reum is a killer too. He's like the mouse that they depicted at the start. It looks small, timid but that's something that should not be underestimated. We saw how the mouse attacked the snake despite its size. Just like Ba-reum, he looks timid and cares for animals, but maybe that's all for show, so no one would suspect him.

Also, he's the main actor. So it speaks something.

JDPT Mar 12 2021 7:35 am I think ... both of them is psycopath, while the other becomes murderer yet the other becomes behind the scenes genius.

With the knowledge i got from Criminal Minds Series, LOL, Psycopath is the best profiler for other psycopath. Thats why, the surgeon interest on Jung Ba Reum since the beginning. And thats also how Jung Ba Reum know the murderer.

The kidnapped is a bait.

Angel Mar 12 2021 6:44 am Oh my gosh!! i have to wait 5 more days to satisfy my super hanging and confused Intestines?

Episodeeee 5!!!!!!! Please Air Early ?

I think they are just setting up a show. Let's just believe in this line Haha

ShashaXV Mar 12 2021 5:55 am I want to write my guess here so I can remember when this drama ends. I really think it's the priest Go Mu-Chi's brother. Because nobody will really think he is the culprit since he has a disability. ALso bcoz the killer seemed to be religious.

ali Mar 12 2021 5:16 am yeah I'm thinking it's a plan to provoke the killer too, because serial killers probably would be mad when someone else is taking the 'show' as a faker. also moochi talked about setting a trap as he presenteted before at the police station

Scarlet8060 Mar 12 2021 4:57 am I just realized the kid was wearing a mask which could indicate that it's a different kid and it's all just a plan by Moo Chi and KBR to provoke the killer.

sf Mar 12 2021 3:56 am @G_G When the doctor from prison was called to save Chi-Kook, he wasn't alone in his cabinet, he was with another person. The silhouette's of the person seemed very much like Yo-Han's. Ep 2 at 45.21.

Maic Mar 12 2021 2:16 am the drama showed us very early who the killer is, so either the two are together, or the two are murderers and are, as I can say. wanting to face each other (?) or Bareum is being blackmailed, something I think is quite impossible because, I think he would only be blackmailed if he were the kidnapped bong yi. So in my opinion there are two killers. As i Said below

Maic Mar 12 2021 2:04 am SPoilerrrr if you dont watch ep 3and 4 ... ...... .. .. what did i say? that the killer was JBR, and there was another killer besides him. I said at the end of ep 2 the voice of the child actor seo woo jin and he says "I wanted to know if the other child with a psychopathic gene also became a predator like me" and the actor seo woo jin plays the child JBR. since ep 2 they made it clear who the killer was and in the clearest 3, there was another one ...

Ellysasekar Mar 12 2021 1:28 am I think it was grandma who killed by doctor. Why..? Remember when grandma came to the doctor's house? There was a doctor named Kim joon sung ( Yo Han's friend ). "The jacket Sung Yo Han is the mint - smelling" Said Jung Bareum. Which SYH doesn't wear perfume.

I think the Psyco with the middle finger pointing fingers is officer jung bareum. Besides, it was the doctor's victim.

It could be that the killer of the KJS (friend SHH) was jung bareum. And han kook was kidnapped because han kook was left behind. And that's how jung bareum hated his stepfather because of han kokk's video that he remembered. Let's wait for a follow episode because this film has many plot twist twist.This is just my opinion.  We wait n see who is the real Psycho between Jung Bareum and Sung Yo Han

iamhyunjinnie Mar 12 2021 12:42 am this is my theory.. I think the real killer which is yo han blackmailed bareum to kill his love ones if he don't act as the killer or the psychopath of the 6 victims

xkirasorax Mar 11 2021 11:28 pm I think Yohan is the killer while jbr is act like a psycho (which is he have too.) Y'know I mean like he set a trap to mu-chi and yohan he just watching and set a trap to know who is the killer I mean psycho also interested to other psycho like they enjoying watching psycho kills and the police who try to find a murderer they enjoying that even they didn't kill I think bareum is the one who gave clues. And enjoy the show of the head hunter son x mu-chi there is also another kid right? The higher ups child in episode one who disagree about abortion maybe the child is Shin Sang (PO's character) He said that his father is running for presidency. Remember Dr Lee also gave a paper to someone on the car may be its shin sang's father.

A major plot twist here if shinshang is also a psycho wohooo! This is a good drama and thrilling it gaves me goosebumps!

Yohan is finding the other kid which is bareum or else its turns out that also bareum finding yohan. Since I think both of their mothers tell them that they also have same psychopath genes.

Mau Mar 11 2021 9:05 pm Yo han's mom recall the scene where she wanted to kill his son but cant and she was feeling too much guilt knowing his son turned like his father, when the team move to Ba reums house, BR said to HongJu that he saw the person they helped but was interrupted, who is this person? if you noticed to the person who went inside room with the kid is wearing brown jacket then suddenly show Ba Reum wearing only his checkered polo, there might be two different person but want us to think its Ba Reum.

Tim Mar 11 2021 8:43 pm well it would be a twist if both yo-han and ba-reum are killers. who would have thought a talented doctor and a naive police love by the neighbors could be serial killer, their disguise is just perfect. They save people during the day but release their inner monsters at night.

meghna Mar 11 2021 8:22 pm In love with this drama, so intense and exciting. I cant wait to watch episode after another episode. All the actor and actress bravo !

Mau Mar 11 2021 8:21 pm by watching this series we all became a detective, we all have theories of who is the real serial killer, i think HSJ wife put her son into adoption so that the child wouldnt know who is his father but Yo han killed his adoptive family and his mother raised him to be a doctor, Yo han killed Daniel Lee preventing him to expose that he is HSJ son. I think the writer want us to believe that Ba Reum is a killer he may have a psychopath gene but not all psychopath are bad, this drama depicts good and bad.

Sally Mar 11 2021 7:42 pm Let's discuss about it.

1. So Yo Han's mom recalled the moment when she strangled little Jae Hoon and said, "i should've killed you, you're monster." So, she's remarried and having 2 other children, right? The kids in episode 1 and 2. Where are the kids now? Did Jae Hoon really kill them then he changed his name into Yo han?

Or his mom talked to herself?

2.The killer called Moo Chi and requested him to find something in common that the victims have. Well, i believe Moo Chi has not found anything by the time the show is going live. So, he asked Ba Reum to pretend to be the killer and calls him during the live show.

And my guess is, something in common they have is they go to the same church.

3. So, i suppose, there are two killers in this show. One is the real killer, the other is just pretending in order to get the real one.

G__G Mar 11 2021 7:36 pm What if there are 2 killers, that Bareum and Yohan actually worked together? Because Yohan didn't go to the prison so he can't be the one who stabbed Na Chikook, right? It was Bareum who was there... Bareum chased after Yohan after killing Bongyi's grandma only because she wasn't supposed to be a victim :( poor grandma I cried so bad :((

TMTEHL Mar 11 2021 6:03 pm The ending of ep 4 remind me about confession of murder movie (2013) that to reveal the real serial killer must provoke the real serial killer by acclaimed that jung bareum is the serial killer not sung yo han and then sung yo han appeared as the real serial killer

Khate Mar 11 2021 4:39 pm Can someone explain ep 4 to me?????? I am confused... Emmm in my opinion, maybe there is two killer, am i right? 1st killer is Sung Yo Han/ Han Jae Hoon/ Han Soe Jun son/ Headhunter son. And the 2nd killer is Jang Ba Reum. Jang Ba Reum is the killer who likes attention and is the one who kipnapped the child. But i dont know, i am not sure, confused but its interesting.

Cinta Mar 11 2021 4:00 pm The reason grandma didn't go straight to police was because she wanted to help Bareum to solve the case & get the promotion. Bareum is also a police officer. She's not stupid, she's naive.

sf Mar 11 2021 12:12 pm How many potential criminals are there, two or three? If young Jae-Hoon is now Sung Yo-han, then remains two. I think that Jung Ba-Reum's mother after she was visited by young Go Mu-Chi asking her for money for his brother operation, though that it will be safer for her son to live far from her. After that, maybe she adopted Yo-han, knowing who he is. Also, I think that Ba-reum knows who is Yo-han and he voluntarily entered in Yo-han's play to catch him. I wrote this after I saw the fourth episode, but without translation. Maybe my presumptions are wrong, but now that is what I think.

Guesser Mar 11 2021 10:56 am Loved the first 2 episodes... two of the best I've seen in a while to begin a series, but episode 3 was awful. Slow, boring, nothing really exciting and full of incredibly and inexplicably dumb decisions by some of the characters, to not say all of them.

Hope the 4th episode makes up for it, but what a terrible episode that was.

May Lim Mar 11 2021 8:28 am Stupid episode 3 With the grandma... Director make her so stupid.... shúd have send her straight to police And that spoilt brat girl too...stupid stupid stupid

SKY Mar 11 2021 7:35 am I would also want to post about the possibility of Pastor Go Mu Won faking his disability when he’s all healed. I know it may seem too far-fetched to many. I personally think he maybe behind the the serial killing of boxer, female employee, homeless person and female student. Go Mu Chi mentioned that the killing of the boxer involves some sort of personal revenge and the evidence left behind (the Bible) highlights a Leviticus passage. With the Bible hint, I think it draws down to between Jaehoon and the pastor. One who visits the church to pray and the other who reads out scriptures all day. In which I’m leaning more towards the Pastor. Although the part about the killer knowing human anatomy baffles me a little, I still think it’s the Pastor for me.

zearvent Mar 11 2021 6:51 am and....the plot twist........ dururudum..... Jae Hoon = Shin Joon Sung

LoL....

patrick Mar 11 2021 5:53 am @typical1007

think they are siblings

SKY Mar 11 2021 5:49 am Someone posted this theory on YouTube. It is assumed that HSJ wife switched the babies with the other mother somehow and she has been watching over JBR (like how he cared for the injured bird) That’s why she told Daniel that his theory is wrong. This also explains why she tells Yohan there’s someone else just like him out there.

eremika Mar 11 2021 4:51 am i kinda feels that bareum is the real serial killer. he faked by trying to look innocent, kind, slow and weak. but actually he is very smart. maybe he become a police because he wanted to look normal & to see by himself how police investigate serial killer case. remember that head hunter also a psychopath who look normal & no one think he is the head hunter despite being a doctor. bareum grow up normally as taught by his mom (the other pregnant lady with psychopath baby). he grow up being a sociable and kind kid but on the inside he can never stop killing people.

meanwhile yohan killed daniel lee because he doesnt like how daniel lee trying to look onto his old history (him being head hunter kid & as jaehoon who killed his family). he also killed grandma because grandma found his secret room. the secret room full with the serial killer case. maybe he got curious & wanted to study about the serial killer. pictures might be gotten from her girlfriend. we can see in the drama that serial killer's room was different from yohan's secret room. he has the psychopath gene but he's still trying to fight the urge from killing people. his murder were not as smart as serial killer.

both has psychopath genes. one is faking himself but actually having fun with serial killings. another one maybe trying to fight and wanted to repent to become normal person.

just my theory ?

Daniel Mar 11 2021 4:27 am If you rewatch ep 1 & 2, particularly the scene where the current serial killer is talking, try to close your eyes, and you'll notice that the voice is eerily similar to Choi Jin Hyuk's voice. So my guess is neither Yohan nor Ba Reum is the killer but Choi Jin Hyuk. He is probably the son of the government officials that secretly requested Dr Daniel to run the DNA Test in ep 1.

Remember Flower of Evil, where the real villain is kept as a secret and we were misled to believe that Joon Ki is the villain? I Think mouse is doing the same thing

JNDK Mar 11 2021 3:15 am Why granny? Why did you do that??? Nevertheless, I think this drama will be awesome. Can't wait for the next episode. I also hope that the plot twist will be spectacular.

mir Mar 11 2021 1:05 am I already figured out who's the serial killer. But idk why Jae-hoon disappeared. Maybe Lee seung gi is Jae hoon but change his name but also maybe the killer change his name. But, based on my research in these 2 eps, the killer didn't have any purpose to change his name. So, I do think that Lee-Seung Gi is Jae Hoon but then changed his name since he killed his parents and don't want people to find out.

Ally Mar 10 2021 11:49 pm i dont know but my feeling tell lee sungi is the killer one,just wait the plot twist in the end will blow ur mind hahaa

Typical007 Mar 10 2021 11:21 pm Did Hong Ju and Yo Han slept together?

widow kim Mar 10 2021 10:09 pm why the hell did daniel lee meet the son of the head hunter at an abandoned amusement park? isn't he supposed to be smart?

Geum Mar 10 2021 9:42 am Spoiler

Sooooo the son of head hunter and the murderer is...... Yohan!! He 100% head hunter jr.

Bb Mar 10 2021 9:21 am @Gwenchana

And the other man who likes Park Ju Hyun in Zombie Detective was Kwon Hwa-woon. This is kinda interesting. Hwa-woon's character in ZD was a good man and a cop, but here in Mouse his the son of Head Hunter?

Bb Mar 10 2021 9:17 am This is honestly the first drama of Lee Seunggi that I watch. I know him, but I don't know why I didn't watch some of his drama in the past. But after watching the 2 episodes of this drama, I started to fall in love with him? Aaaah!! I'm so stupid on the part that I ignored him in the past.

Htb Mar 09 2021 7:49 pm Seung gi is the second baby with a gene of a psychopath but his mom believes that the research can be wrong or belongs to the 1 % who will not be affected because his dad is a good person. Psycopath can be genetic or environmental. After a trigger sets in, will he turn into one or not? I love the thrill. Waiting for the next episode. Seung gi played is role well as a goofy cop.

Meruchan Mar 09 2021 10:14 am Im on the fence with this drama so far. Need another 2 more episodes to determine. So far not a fan of Seung gi's acting in this. I hope there's a crazy twist cos otherwise this drama will be hella boring and draggy. Really hate the female school girl too. She always chooses really annoying characthers to play especially extracurricular. If shes serious , she needs to diversify her role otherwise shes gonna be stuck being the annoying trying to act tough kind of role.

Hellen Mar 09 2021 4:06 am I think jaehoon he is a killer and he kills those people and curse the cross because almighty fail to answer his prayer and he became a monster...

Gwenchana Mar 09 2021 1:42 am @Bae Rona

I think that's why Choi Jin-Hyuk declined the role for second lead because he already partnered with Park Ju-Hyun (Oh Bong-Yi) on Zombie Detective. It doesn't make sense if he played being second lead here wherein he already get the girl on Zombie Dectetive. :)))

shanks Mar 09 2021 1:21 am It is so good. The pilot episode is one of the best pilot episodes in K-Drama land. There are no dull moments. Hoping that the next episodes will not disappoint us and the latter episodes will not be just like the rest of kdramas out there where it started strong and ended awfully.

Bae Rona Mar 08 2021 10:46 am Just found out that Choi Jin Hyuk should portray the second lead but declined. It is so sad because I want to see him in another drama again huhuhu

Reyn Mar 08 2021 8:38 am So, Jaehoon killed his father and his siblings?

jennifer Mar 08 2021 5:20 am phsycopath bec his father is phsycopath?

hmnnn..i think the child it turn to psycopath depend how he or she grow up inside the home if someone they didnt love him/she..and its depend to the parents also...

dududu Mar 07 2021 10:25 pm There are two types of psychopath: violent and not violent. So there are possibilities that the son of head hunter is really a psychopath but does not kill anyone, and JBR, another psychopath, the son of another woman who's his late husband is kind, can be violent. Idk what's going on inside director's head, there are tons of possibilities. I'm just hoping that he will give us a great ending : )

ApinkMelody Mar 07 2021 11:31 am So addictive yet confusing! I can't tell who is who. Would be amazing if Lee Seung Gi turn out to be the real culprit, lol.

Melissa Mar 07 2021 11:30 am In my opinion Jung Ba Reum (Lee Seung Gi) is the Mouse (Lab Test), He was the other women son who become Daniel Lee lab research who claim the son will be a psychopath, but in reality he is not, and her mother really prove that the Doctor theory's is wrong.

Mm Mar 07 2021 10:06 am I just don't know who's the real culprit hereeeee. Such a nerve racking. The writer/s are really clever huh. U got us all confused and thrilled, honestly I am wishing that JBR is not the son's head hunter bc I just don't know what to react and what to feel if he was the son jebaaaaal?

I can even see the sexy body of JBR even if he's dressed up lawl?

Gülşah Mar 07 2021 9:21 am I think the killer priest...

?? Mar 07 2021 8:29 am Jung Ba Reum's last name has the same last name as another MP. I don't know, maybe only their surnames are the same. The screenwriter will give us 2 lessons to learn in this series. First of all, it will not be bad because a person has a psychopath gene, but the environment in which a person grows up is important.

The second is that nobody is what they seem. He may not be really good because he is behaving well, an example is jbr, so I think so.  Also, did you notice that moo chi was saying that you don't know what kind of person you will be in anyone. 
I'd love to see Lee Seung Gi in the role of a psychopath

Lee Mar 07 2021 5:59 am I think Jung Ba-Reum is Jaehoon's brother. lol. Jung Ba-Reum is Jae-Min...

then Sung Yo-Han is Jae-Hoon... Choi Hong-Ju is probably Jae-Hi.. lol

OR....

Jung ba-reum is the other murder.. the son of the other pregnant lady who says that its impossible for his son to became a murder because her husband is kind...

i still believe thou.. that Jae-Hoon And Sung Yo-Han is one person. i think they both became murderer.

jung ba-reum save the bird.. then i think he put it in the box with no holes.. i think he's killing the bird. prolly kill or attempt to murder the policeman as well. lol, and just pretend everything and the head hunter was able to see through him because they are the same..

jae-hoon is yo-han...and he's the head hunter's son.. there's a scene where yohan and head hunter talk in prison.

ringingbell Mar 07 2021 4:25 am I think Han Seo Joon's son is Sung Yo Han. You can see at the list "Han Seo Joon's group", Yo Han had the same family name with his mom. Soo it's mean, maybe, Jung Ba Reum is Jae Hoon in adult. Omg maybe JBR is the real murderer.

Siska Mar 07 2021 4:21 am Why everybody here's so confused ?. I think Jung Bareum is definitely the Head Hunter's son. Because, he is the 1% genius person and doesn't have the 99% Psychopath gen. The writer shows you Jung Bareum picks the sick Bird just to confuse you all, LOL, so you will think he was a little Jae Hoon (picked a mouse), instead of he has a good heart. Well, usually the main villain is unexpected, maybe the main lead's friend, just like the Detective Moo Chi's assistant (maybe he is the Congressman's son) ?. Who knows ?.

Papanyagio Mar 07 2021 3:35 am I guess Jae Hoon is Sung Yo-Han. He is son of the other pregnant lady in ep 1. Jung ba reum maybe Han seo joon son. Great drama for me.

Nirmala Mar 07 2021 12:29 am I think Jung Ba ram is another pregnant lady son and he is the killer and sung yo han is head hunter son but not killer even though he appears cold. Most of psychopaths doesn't show their true nature and diaguises them selves as good people like ba raum

eun Mar 07 2021 12:05 am This drama is so confusing, I have to review the cast to see who's who. But it's very goood I can't wait to see the next episodes, definitely gonna have some plot twists here and there

Yeji Mar 06 2021 11:36 pm @kilk yea you could be right but they actually did blur her face a little hoping people won't notice and a lot of people didn't at first until after a re watch. But what I don't understand is, if haejoon is the head hunter's son, why would his mom remarry despite the trauma she went through after finding her husband was a serial killer?. It just doesn't make sense. Even if she did remarry, I don't think she would neglect her son's upbringing knowing fully well he had the psychopath gene and could turn out to be a serial killer like his dad. This drama is confusing but I love it and I think the writer is smart.

jenny tan Mar 06 2021 12:39 pm Excellent drama. Just episode 1 , make you feel so exciting and cant wait to continue the follow episode. Highly recommended drama of the year.

The first episode is equivalent to 16 episode of the the drama(which consider slow drama). I really love how fast the scene move and exciting to watch it too.

Naa Mye Mar 06 2021 12:02 pm So, where is Jae Hoon. Or maybe Baruem is Jae Hoon?

lelik77 Mar 06 2021 10:12 am Stupid nazi-genetic theory...

Geum Mar 06 2021 9:45 am I think there are two murderer. I noticed it after rewatching eps 2. In the scene when adult murderer said that his first murder made him tired. He said “first murder”. If the murderer is Jaehoon, it wasn’t his first. Because his first murder victim was his step father and his step bro and sis.

What i got after watching it twice : 1. In eps 1 there are 3 pregnant women. Head hunter’s wife, Daniel friend’s wife, and assembly chairman’s wife. 2 women already examined their baby as we seen on eps 1. When Daniel gave doc to someone in the car, i think that was assembly chairman.

2. Adult murderer said that the boxer was his murder.

3. Jaehoon’s first murder victim was his step father.

4. When Jaehoon left teacher’s room, there was 1 kid starred at him. But still have no clue who was that kid.

5. Detective police in eps 1 lost his daughter. I think his daughter was the little girl whom said her father car hit the tree. And that girl grow up as Hongju.

6. Im pretty sure Bareum is Jaehoon. When his friend said “are you a veterinarian?”. I think Bareum often pick up every animal he found on the street. Little Jaehoon picked up a mouse he found on the street.

Klik Mar 06 2021 8:05 am @Yeji Yeah I noticed that she looks similar but I think it is misdirection (they made her looks similar to head hunter's wife). Otherwise, why bother to not show head hunter child in ep.2 when Go Mu-Chi visited them. Also it would be kind illogical if head hunter's son was a suspect of murder of his family and press would not write about it (they just wrote that child is a suspect) or at least Go Mu Chi would have to know about it because of gossip in police (he searchs for him). And the most important thing, Go Mu Chi's revenge in the plot would be completely without suspense if Head hunter's son is psychopath murderer. He would have much more moral dilemma if Ba-Reum is his son especially that he got to know him in next episodes.

aLice Mar 06 2021 7:49 am @geum if that, so it will be the same storyline as flower of evil. The psychopath's son wont be a psychopath and another son who will become the next psychopath

N3g Mar 06 2021 7:39 am Wooohh.. wooohh.. maybe have a bigest plot twist...

Yeji Mar 06 2021 5:11 am If you look closely In ep1 the woman who was seen strangling haejoon and saying 'i wish I never gave birth to you' is the head hunter's wife. Just pause it and look closely. This means that the head hunter's son is jaehoon and he's the killer. We still don't know if that son is bareum or yohan and at this point it's really hard to tell. Also for people bringing the theory about a politician son also being a psychopath and could be the killer, that's ridiculous because, 1. It's clear that the killer is haejoon 2. Haejoon said that his mom told him that another woman's son had the psychopath gene. This means his mom is one of those women who had that discussion about their child being a psychopath. We never got to see the politicians wife ever so she's out of the question.

Unless they decide to change it, the head hunter's son is the killer

Geum Mar 06 2021 1:12 am @Klik dont forget about the assembly chairman. He opposed DNA exam regulation for pregnant women due to his wife was pregnant. And also when jieun came to Dr Lee to examine her baby, Dr Lee got phone call from unknown, then he took a document, left his room and then gave it to someone waited in the car. Is it possible son/daughter of assembly chairman also has psycho gen and he/she is the real murderer?

Kdrama fan Mar 05 2021 11:06 pm After watching episode 1 and 2, I love this drama. It is a good thriller drama. My guess is Sung Yo-Han is the the head hunter's son and Jung Ba-Reum (Lee Seung-Gi) is the son of the mom whose husband died because of car accident and has psychopath gene. After dealing with Sung Yo-Han's case, the psychopath's gene that was dormant in Jung Ba-Reum is awaken. O, I hope the story is not twisted like that.

azy Mar 05 2021 10:03 pm Really good drama. cant wait for episode 3

Anelise Mar 05 2021 9:13 pm Thank you so much the characters help a lot for us to identify them !!!

Klik Mar 05 2021 6:55 pm Author give viewers good clue who is child of Head Hunter. You had to focus on pregnant women. One was married to the murderer and second had very good memories about her late husband. One was sure that her child would be not normal because of his father and second didn't want to believe that her child would be psychopath. It was also said that one was old for mother while second looked quite young. Which one would decide to remarry? Which one would focus more on upbringing of her child? It's kind obvious that murderer is a child who was a suspect of murder of his family. And it didn't seem that his family really was careful with his upbringing.Meanwhile Bareum seems to be very well brought up.

maic Mar 05 2021 12:22 pm will be a surprise if, yo han works with bareum lol and @Millie i think jaehoon is bareum well, i wait, right.

Millie Mar 05 2021 12:16 pm Ok, i just want to know, did Jaehoon died? if he's not, who is he as an adult?

drama Mar 05 2021 10:18 am @Pacoon seems like you comprehension is very slow.. It is already said in the synopsis that JBR is a policeman. And given to their preperation with JBH and his friends carrying boxes ,etc. You will get it that they will perform in a prison. They are serving community service and to entertain those prisoners. And now flashbacks?? there are many questions left.. did that boy really kill his father? what happened to the wife and baby of the headhunter? where is dr.daniel? and many more mysteries on how the new psychopath killer shows up.. This drama is not for you , you can have good crticize in a drama its good but if you blurt out nonsense it makes you a hater in the 1st place.

Geum Mar 05 2021 9:35 am Did you guys realize in the scene when Chigook came to prison doctor, the doctor got phone call from his friend and he said “you dont bring ID? Wait me, i’ll come to you”. And when Chigook was found injured inside the box, one of police call prison doctor and urged him to come to the hall. Before leaving his room, the doctor asked his friend to wait him. I think he is Yohan who come regularly to visit Seojun (maybe Seojun has become his murder mentor). That’s why Chigook’s watch was found at young lady corpse found in green house. Yohan got it from Seojun.

So, the murderer is Yohan but he isn’t Seojun’s son. I think Bareum is his son.

This is my opinion after watching eps 2, but possibly it can be changed after watching upcoming episodes. Aaargh cant wait for next week.

Multistan Mar 05 2021 9:13 am I got confused after watching episode 2...because who is who..??

Dear m Mar 05 2021 7:10 am I'm pretty sure the head hunter's son is not the killer. The head hunter's son could be either bareum or yohan. I know a lot of people think it's bareum but I have a feeling it's yohan. Imo bareum is the killer and son of the other pregnant woman, outwardly he looks like a nice person always helping people like halmeoni but inside a monster. Most psychopaths are like that. Yohan on the other hand looks cold outside but could actually be a sweet person

Just a fan Mar 05 2021 6:55 am I came across drama and thought that the storyline was super dark and eye-opening, which reminds me of Black. And guess what! It turns out they are both written by Choi Ran! What an amazing writer omg.

Atsar Mar 05 2021 6:48 am @villanoir Qutoe:"Killing people doesn't make you a psychopath, it makes you a murderer." Nice Quote from you dude :v

Jil Mar 05 2021 6:47 am JBR is the son of the head hunter. The other kid, with psychopath dna becomes a doctor and is now the current psycho.

I hope the writter create another twist and not stick with the same old story line. This series has so much potential.

Kim Mar 05 2021 4:03 am I think that hunter’ son is Lee Seungki, but he didn’t become a psychopath! And another pregnant woman’ son is surgeon doctor, who’s got a psychopath dna! So hunter is psycho, but his son turned as kind person, just like his wife! And another father was nice, but his son becomes a psychopath, maybe bcz of mother dna!

Mona Mar 05 2021 3:47 am Is it only me thinking JBR is head hunters son and he will be triggered to become a killer towards the end of the drama

Sha Mar 05 2021 3:44 am Spoiler.

I think JBR is Head Hunter's son who was abandoned by his mom when he was born and was adopted. But he turned out to be a good guy instead. Haejoon might be the 4months preggy lady's son... as she said her son has a psychopath gene but her husband is a kind man so she raise her child but it turned out to be Haejoon, that Doctor.

mann Mar 05 2021 2:44 am they spent who episode 1 to basically say presence of psycho gene can lead to either a genius or psychopath, and there are two babies with that gene. fairly obvious lee seung gi' character has the gene but manifest as a genius - who is going to watch him playing the psychopath, not that he can acting range can do that...

villanoir Mar 05 2021 2:41 am Honestly, this is probably the most idiotic portrayal of a psychopath ever. He has an IQ of 160 but clearly doesn't act like one. Killing people doesn't make you a psychopath, it makes you a murderer.

Divya Mar 05 2021 2:34 am I think in the first episode there was some one in the car who took some reports from doctor Lee. So, I think there is one more person to show up in the show ,that will show a clear motive and some suspence for the whole drama....

Rachel C. Mar 05 2021 2:17 am This drama give a you goosebump. The actor, actress and child actor & actress is amazingly great in their drama characters. The Storyline was great showing about real life facts, impact and inner and science. Such emotional great drama express Life journey that you must never missed.

Kirasora Mar 05 2021 12:12 am I think JBR is the other pregnant lady child and that doctor is the head hunter son. the head hunter son is older than jbr (I think months because the head hunter's wife ask the lady if she wants to abort the baby because she have still a chance to abort) but the lady said she doesn't want to abort her child and she will raised him as a normal human being she said that her husband is a kind of person remember he died because he save the child from car accident just like jbr did he save the bird and path across with mu chi and when u saw jae hoon was looking to the other child when he passed to go to the teacher's office and jbr said "He just like us." Referring to head hunter. Head hunter was looking at him because Jbr eyes doesn't have emotion and u see the doctor his facial expression when he heard that headhunter save jbr friend. and the doctor was curious if jbr is the other child that have same monster gene as him when her mother said there's other child who have pyschopath gene (in episode 3 last minute when they see each other.) Well for me this is a good drama we have different opinions as a psych major who loves crime thrilling psychology dramas and Im always curious about psychopaths and other disorder this is a good drama for me well I hope that jbr is not the head hunters wife T^T

Oh bong yi character is still mystery also the pdnim

jojo Mar 04 2021 10:45 pm at least with restrictions in place, they couldnt blow their whole budget in 1st episode by filming in foreign country. do all authoritative figures have to come from abroad. and if thats the case, jo jae yun could have atleast practiced his two lines in english a bit more diligently, and get rid of the accent.

Pacoon Mar 04 2021 9:48 pm I quit after two episodes (3 hours !!). 20 episodes, 85 minutes each, would be like a normal series of 28 episodes of 1 hour. This show is very tedious and slow for me. There is nothing new. It introduces one of the main characters as a magician and after an hour we learn that he is a policeman - what a turn of the script!-. After seeing the boy and the snake from the first episode, I think the doctor (the boy) betrays his father (the snake) and puts him in a fight with Lee Seung-Gi (the mouse). Who will win? Who is behind the murders? Will she be the daughter (Kyung Soo-Jin) of the first assassin? I do not care.

Cinta Mar 04 2021 9:23 pm --- spoiler

Episode 1 is packed with the leads' childhood story so it feels really convulted. But it was a great episode! - The girl whose dad's car hit the tree grows up into PD Hong Joo. - The young boy who saw his family killed by the predator is Moochi (but he doesn't realize his older brother is alive and becomes a priest) - I still have no idea who young Bareum is but he looks like SeoJoon & JiEun's son. JiEun who saw what her husband did, will not let her son to grow up like his dad so she might've put him in therapies etc to ensure he will not grow up as a monster - Jae Hoon is probably the other pregnant woman's son and will grow up into that young doctor. She never experiences how evil psycho gene is so her son never receives any professional help to deal with his psycho gene.

It'll be a big twist if JaeHoon ends up as Bareum.

Salmah Mar 04 2021 8:45 pm Just wait and see they will say the head hunter's wife exchanged with the other woman who had the child with the psychopath gene Both of them will raise the kids they didn't give birth to. And ofc there is no Korean drama that they will make the main lead a killer there is always a way out. Imagine I was scrolling down asianwiki cast yesterday when I watched the first episode I saw the kid who was psychopath in the drama was written down by as young JBR. Now they changed it to jae hoon to make us confused ? Omg let's see the head hunter's wife didn't raise JBR she raised the doctor thats what I believe. They wanna confuse us because of a watch and ofc they will look for a way to say the doctor did that.

Avlov Mar 04 2021 6:51 pm Theories and SPOILER!!!

Jung Bae Reum is clearly the head hunter's son. Every after camera shoots Seo Joon, it will move to the next scene, where JBR is. Moreover on the preview of next episode, JBR asked Moo Chi to be in his team. Just like Kdrama Cliche, they always put the enemy closer. In this case JBR (if he's the real head hunter's son) is Moo Chi's target for revenge (it is told when Moo Chi visited Seo Joon in prison)

It is clear that the doctor is the killer, the killer is rich enough to drive a car and i believe (based on the last scene of episode 2) he is the son of another woman who did the Psychopath test in episode 1. however how he got the Chi Kook's watch and placed it in the next victim's hand? When CK inside the box he didnt wear anything except his short

However this is only episode 2. Still curious why JBR always safe little animal, whether he is the killer or not still no idea. Kdrama never placed any main role to be a killer. I also am suspicious of the priest (Moo Chi older brothe) whether he faked his hand or not so people would not be suspicious of him.

Why people here don't speculate anything regarding the reporter? Moo Chi asked her why she was so interested with the murder at the boxing gym? I speculate that she is the little kid in the episode 1 who pretended that her dad has car accident and led the female to the car. Moreover she is in the first four of main roles.

Well, so far who we have known in the first four of main roles only Moo Chi. We haven't know who JBR in the past. also who Oh Bong Yi is , whether she is the little girl at Jae Hoon's home or not. As well as the reporter who has been curious with the serial killer

Nara Mar 04 2021 3:36 pm I think Sung Yo-Han( the doctor) is Jae-Hoon and Jae-Hoon is the son of the pregnant lady that appeared in the first episode who remarried. Thats why they blurred her face and thats why she says i should have killed you when i had the chance (Head Hunters wife couldn’t abort the child cause she was too far along).Jae-Hoon probably admires the Head Hunter and thats how they know each other, hence the scene when they meet in prison and the Head Hunter tells him that he always wondered what his son looked like referring to Jung Ba-Reum. My guess is he knew immediately when he saw Jung Ba-Reum because he saw the emptiness in his eyes and recognized his own son. JBR was probably raised unaware of his fathers doing and his mother tried to make him “a better person” by teaching him to help others, etc.

Dramatic Mar 04 2021 3:17 pm This drama is so fuking freak. Eps 1 is so boring, just like another thriller drama, and so many plot here. Mouse? Are you kidding me? Its just klick bait tittle, so many scene with slow movement, omggg. That is not make me scary but just make me feel boring.

Cicco Mar 04 2021 12:48 pm I'll skip this drama and watch after all episodes are getting aired. I have some kind of trauma towards thriller drama

Leman K Mar 04 2021 12:28 pm I kinda have a trauma with this writer but I'll give it a shot.. ??

NgobrolGame Mar 04 2021 11:00 am I really like this one drama, the action scene is very well packed and not boring, especially by presenting senior and junior players with very good acting.

Pid Mar 04 2021 8:48 am I think Sung Yo Han is Sung Ji-Eun son since both character has same surname. They might related to Jae Hoon

sf Mar 04 2021 5:47 am Sung Ji-Eun is Jae-Hoon's mother, and she has remarried. They didn't show us very clearly her face, but it cannot be someone else. And for sure, JBR is the son of the second pregnant lady. I see that after 25 years, Seo-Joon is still alive.

Seungi fans also crime drama fans Mar 04 2021 12:11 am So maybe Jung bareum is somehow the pregnant lady child who meet and chatting with seo joon's wife . But who is jaehoon a pyscho suddenly appear, and it seems like jaehoon father is not his real father... Hmm it's getting interesting. I mean if anyone who saw my comment, you should watch this drama!!! Ep1 dont show the main actor yet and I do want to see them actually but yet ep1 is good to watch and it keep you think who and why this person relatable to future. Also I dont think Jung bareum is just ordinary policeman (even if he is I don't care cause I just wanna see seungi lol no hate guys) , remember what the pregnant lady said that his child test pyschopath but his father died because saving a child so she wanna prove it wrong, so i think that the child is now Jung Bareum. Thats all.

kdramafighting Mar 03 2021 11:39 pm the first ep already make me curious for what happen next .. really a good drama .. this will be ny favorite thriller drama after times & beyond evil ..

Pacoon Mar 03 2021 6:24 pm The first episode has been like watching an Indiana Jones movie, but without Indiana Jones. This chapter will be studied in the script schools of how not to make a first chapter where the main actors are not. Almost an hour for a simple murder and introduce some children's characters that in episode 2 they will have to present again but as adults. Why go back to the same thing? And it only took 85 minutes. Amazing! I suppose that chapter 2 is actually the first chapter and that there will be no more flashbacks in the remainder of the show.

Piepien Feb 22 2021 9:21 pm Whooaa!i hope the storyline just as exciting as writer's previous drama Black!because it was soooo goood!!its make you curious in every episode!*fingercross i wish it will be great as my expectation ?

Cathy Feb 16 2021 4:10 am Choi jin hyuk please. Park joo hyun is best female lead together with choi jin hyuk

Rhianne Feb 12 2021 9:59 am I can't wait to watch this... sososososo annoying I am counting the days till Feb 10, then when I look it is now air on March...

EXO-L1485 Feb 12 2021 8:12 am Wow. I'm really excited for this drama. The writer was the one who write the BLACK kdrama. Omaygaaad

Kesha Feb 11 2021 5:43 am Can’t wait for another excellent performance by Lee Seung Gi! Best actor!!!

Rose Feb 09 2021 11:07 pm I’m very excited for this!!!! I love Lee Seung Gi! He is one of Korea’s most versatile actor. Being good looking is one of the qualities when you are an actor in korea but I only find quite a few who has the skill of versatility in the way they act. Seunggi is of them. He does not rely on his appearance. He always gives his best, he shows the exact emotions in every character he portrays. He can be funny, goofy, sexy, cute, and scary (psycho killer vibes) at the same time. He is indeed talented. I love the way he acts, sings and entertains. Mouse team fighting!

Jen Feb 09 2021 4:09 pm Omo...another hit from Lee Seung gi..I've watched all his drama and movies and i could say that he's really good he will always give his best for everything he was doing he's such an idol good acting, good emcee, good entertainer and good singer but always humble..I can't wait for this drama..?Fighting Oppa and to all the staff & crews of this exciting and thrilling drama?

Veverly Feb 03 2021 9:01 pm Yay! Can't wait! Just by watching the Thriller makes me feel so excited. I'm sure i'll be enjoying watching this because of my Idol Lee Seung Gi-nim. Anyways Goodluck and Congratulations in advance Crews and staff behind of this Drama. God bless!

Dear Writer and Director, please don’t disappoint us Jan 27 2021 9:18 am Thought it was Park Hae Soo in the poster :( Would’ve been a stellar team up.

But I hope it’s still good a thriller. And less annoying than Vagabond’s endless action sequences that went nowhere in the end.

Please a proper ending this time in Seung Gi’s new drama!

Lucy Jan 24 2021 6:00 am I'm so excited for Mouse. It's the drama I'm the most excited for in 2021. I really hope it will be as good as it sounds. It must be though as Lee Seung Gi always picks amazing dramas!

Auntie Bee Ker Jan 13 2021 8:08 am 'So glad he didn't take the offer and did Zombie Detective.'

Just to correct the time frame - Zombie Detective was already completed and Choi Jin Hyuk was offered Mouse drama 2nd lead not long ago and he took time to consider.

He recently rejected and did cameo as a chef for 1st episode of Mr Queen and voice over for his chef character when the chef character becomes entrapped in a woman's body.

Mouse drama has just started filming. :-)

TheMrs Jan 13 2021 12:03 am Choi Jin Hyuk is leading man material and always has been. He is what I consider an actor's actor. Honestly, I am surprised they even had the audacity to offer him a second lead role at this time in his career. So glad he didn't take the offer and did Zombie Detective. Zombie Detective and Tunnel are now two of my most favorite dramas.

Waed Jan 11 2021 6:50 am I'm so exited for this drama it's gonna be enormous ^^

maic Jan 10 2021 12:46 pm maybe yes, i love it. there are many dramas where we think the protagonist is going to be the psychopath and we ended up wrong :( like flower of evil and awaken (well, this one he is and he is not ... anyway) .

Auntie Bee Ker Jan 10 2021 7:07 am "Will Lee Seung Gi be a Psychopath too in this drama?"

Choi Jin Hyuk would be the psychopath murderer if he had accepted the 2nd lead role but he declined.

Just for info, Choi Jin Hyuk played LSG's father in "Gu Family Book" drama some years back though age difference is only about 14 months.

Dian Aulia Jan 09 2021 7:06 am Will Lee Seung Gi be a Psychopath too in this drama?

Carolyn Jan 04 2021 8:10 pm I can’t wait for this drama, it’s a bit sad female lead isn’t Jung so min but that’s fine as long as Seunggi is the lead character. Hope this will appear on viu or netflix after aired

geei Dec 25 2020 11:49 pm @zombie ofcourse if Seung gi is in a drama, he is the male lead.

zombie Dec 17 2020 2:05 am I love choi jin hyuk and park Joo hyun chemistry and I'm so sad that choi jin hyuk is not the male lead?

auf Dec 07 2020 5:43 am Guys!!! Verified, the female lead is PARK JOO HYUN

aufsaid Dec 07 2020 5:42 am Guys!!! Verified, the female lead is PARK JOO HYUN

Rani Nov 23 2020 6:48 am Waiting....

Seung-min Nov 19 2020 4:47 am I am happy that I am not the only one wishing for Jung So Min to be the female lead. Mouse or another series or movie together as long as their path will cross again.

Alley Nov 01 2020 8:17 pm Choi Jin-Hyuk Please accept!!! ❤

Baebae Oct 21 2020 8:28 pm Jung so min for female lead pleasee I love her actingg!!

Piepien Oct 21 2020 12:16 am Choi Jin Hyuk please accept the role!!!!

Apple Oct 08 2020 7:28 am I'm a huge fan of lee seung gi, can't wait to see his new drama!!! I'd like Kim ji won to female lead in drama pls.

Aye Myat Tharaphi Sep 18 2020 1:26 pm Suzy for the female lead, please

Hermione Sep 12 2020 8:45 am With IU pleasee. I hope this drama have many episodes. Lee Seung Gi Fighting!!?❤❤

Hermione Sep 12 2020 8:36 am I'm a big fans of Lee Seung Gi. I hope his partner with IU or Kim Yoo Jung or Shin Se Kyung

s.r. Sep 06 2020 10:14 pm I'm a huge fan of lee seung gi, can't wait to see his new drama!!!

s.r. Sep 06 2020 10:13 pm Choi jin hyuk was lee seung gi's dad in gu family book... I actually really liked their chemistry there and would like to see them work together again

srija Aug 30 2020 6:47 am Choi jin hyuk please dont accept the role , you are getting as main lead offers please dont take as second lead role.plzzzzzzzzzzzz

Evanny Aug 27 2020 4:04 am Jung So Min as the lead actress please... watched them in little forest and I thought they had good chemistry

Issack Aug 25 2020 7:48 am I'm a big fan here, seung gi oppa❤️ I hope the girl he's partner is, Park shin hye, or IU or Suzy again❤️ Cool??

Musika Aug 24 2020 2:32 am I'm a big fan of mind-boggling plot/story, action and off course Seung-gi oppa..

I haven't watched any of the writer's story/drama yet. But i read a few feedbacks about "God's gift: 14 days & Black"

I do hope that "Mouse" would exceed both of them and that it will be a drama that will gain global attention. Fighting!!!

darara Aug 20 2020 11:36 pm Is it action? Someone beautiful, sexy, and cool like Lee Elijah or Suzy or Lee Da Hee for female cast would be great.

Eleanor v. Marata Aug 13 2020 3:54 pm I can't wait this Lee Seung Gi kdrama...i am a legit fan from the Philippines...keep safe our dear LSG..

liam Aug 12 2020 10:28 pm Han hyo jo pleaseee

Coco Aug 03 2020 3:20 pm Han Hyo Jo please

Maricar Jul 25 2020 9:59 am Seunggi oppa?? It will be cool if he will be casted with Shin hye soon.

Airen Jul 19 2020 1:57 am Han hyo jo

Enichan Jun 29 2020 6:34 am Go ah sung? Khikhikhi, i like her and i want to see her new project

Melanie Garcia Jun 27 2020 12:34 pm Park Shin Hye ???? Sure hit ???

ppalgan Jun 25 2020 1:54 pm park boyoung or yura or kwon nara for the female lead please!

Yourfan Jun 19 2020 12:21 am Lee elijah

debi Jun 18 2020 1:50 am I hope the female lead would be kim go eun.....if not her, just kim go eun hahahaha...

kimchi Jun 17 2020 8:45 am yeh thats right Kim ji won

Legfordays Jun 17 2020 8:12 am Kim ji won or kwon nara for female lead

Emerald Jun 17 2020 6:40 am I wish yoona or jun seon min as female lead

Aq Jun 12 2020 5:57 pm I don't care who is a female lead, but please make closed ending. It doesn't mattter sad or happy ending

Demetria Jun 12 2020 10:32 am Jung Eugene, Kwon Nara or Kim ji won for female lead please

Demetria Jun 12 2020 10:31 am Jung eugene, kwon nara or kim ji won for female lead

Goi Jun 11 2020 9:34 pm Kim go eun please

Shadiah Jun 11 2020 4:53 pm Always vote Lee Seung- Gi for the girl . Hope my idea won't change ????? . Love man and am waiting for it LoL✌✌✌

noona Jun 11 2020 5:05 am i vote Lee Sung Kyung for the female lead

FM Jun 09 2020 11:18 am Lee Elijah for female lead. I think she would fit well with Lee Seung Gi, she is quite charming and a good actor. Loved her in Miss Hammurabi.

KD Jun 09 2020 5:00 am Han Hyo-joo for female lead, she would be good in an action series. She was cool in Cold Eyes. And I think it would be nice to see them in a series together again. Kwon Nara would also be great.

Fe Jun 09 2020 1:44 am Big fan of Lee Sueng-Gi, excited to watch another treat after Vagabond???

Lily Jun 07 2020 11:24 pm I usually don’t do this but Kwon na ra for Female lead please I beg you lol. Looks like I’m not the only one who wants Kwon na ra to be the FL yay! Jebal Jebal pls pls pls pls pls pls! Or Jung so min pls pls pls. I don’t mind Suzy either but they recently started in Vagabond so I doubt that’s gonna happen. Please don’t cast Shim Eun kyung pls.

Kim Jun 06 2020 7:31 am Shim eun kyung for female lead

Fan Jun 06 2020 4:01 am Jung so-min please for FL

Seung gi suzy Jun 05 2020 1:55 pm I really wish for suzy to lead the female role..they go well together actually ??

Jeftdoit Jun 05 2020 9:18 am I Hope One of this will be female lead? (Bae Suzy only in VAGABOND 2?) 1. Jung So Min - Little Forest ( I think they had chemistry together) 2. Kwon NaRa - Itaewon Class ( she's pretty & I love her in itaewon) 3. Han So Hee - World of Marriage ( i think she's nxt big thing star) 4. Kim Ji Won - I love her but i know she's busy in AC 2!

Jennreveluv Jun 05 2020 8:01 am Yeppp Kwon Nara for female lead!

Yusluv Jun 04 2020 5:37 pm Suzy bae for female lead pls

Namgiljungwoo Jun 04 2020 11:08 am Park bo young for female lead!!!

katie Jun 03 2020 11:23 pm bae suzy for female lead!!

Seli Jun 03 2020 10:00 pm Kang hana have a potencial to be lead female or ryu Hwa young have a good aura

Urileadernim Jun 03 2020 9:53 pm Lee seung gi and choi jin hyuk?? Count me in!

Sammy Jun 03 2020 3:39 pm Moon Ga Young or Ryu Hwa Young for female lead

Hasti Jun 03 2020 9:03 am Looks like seunggi is acting with all of the gu family book casts again lol

Yesss Jun 03 2020 1:21 am Omo omo Choi Jin Hyuk for co-main lead OMG I definitely want to see this bromance. Pls cast a FL who can actually act too!

Support Lee SeungGi Jun 02 2020 10:37 pm Please support Lee SeungGi’s drama. Thank you.

rahmi Jun 02 2020 10:29 pm Go Ara or Shim Eun Woo for female lead please

Vg Jun 02 2020 9:08 pm Please put lead actress as a Shim Eun-Kyung in this drama

ertgf Jun 02 2020 4:36 pm Not going to watch Lee Seung-Gi dramas or movies until Vagabond season 2 is released.

pol Jun 02 2020 2:12 pm park min young for female lead pls

Diana Jun 02 2020 9:08 am park shin hye lead female please

Maira Jun 02 2020 6:45 am Yes, i also want Jung So Min as a female lead. They have chemistry in Little Forest.

nev Jun 02 2020 6:23 am I think kim tae ri as lead female but idk :D

Ekwerukaglory Jun 02 2020 6:04 am Kim Ji Won already has a project that will likely be released first half of 2021, she's still reprising her role in Arthdal Chronicles season 2 which will start filming second half 2020. She's my Favorite actress and I also want her to be cast with lee seungi but I don't think it's possible

Kwon Nara For Female Lead pls, She's also an amazing actress and I'm sure she's ready to take on a lead role

So min Jun 02 2020 5:37 am I want Jung somin for Female Lead please

Ana Narvaja Jun 02 2020 3:40 am Yay! ??❤ I'm looking forward for this drama. It looks interesting. Who will be the female lead? Can i request? Han Hyo Joo or Kim Ji Won please..?

Jae Jun 02 2020 3:15 am Please let it be Jung So Min for FL.

geewoni Jun 02 2020 3:00 am Kim ji won or Kwon nara for Female lead Chebal

External Links

Official Website

Mouse (Korean Drama)

Contents

User Rating

Profile

Plot Synopsis by AsianWiki Staff ©

Notes

Cast

Jung Ba-Reum's Friends

Jung Ba-Reum's Family

Go Mu-Chi's Family

Oh Bong-Yi's Family

Moojin Bokbu Police Station

Police

Head Hunter's Group

Detective Park Du-Seok's Family

Jung Jae-Hoon's Family

Song Soo-Jung's Family

Sung Yo-Han's Friend

Other Victims

Victims' Group

Tie-Knot Murders' Group

Kang Duk-Soo's Group

Guryeong / Suseong Serial Murder Group

Gasoline Murder's Group

Sherlock Hong-Ju

Fact Check

Government Officials

NFS

Prison Group

Hospital Group

Mystery Kids

Others

Trailers

Episode Ratings

Comments

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