Signal (Korean Drama)

User Rating

Current user rating: 91/100 (6896 votes)

You need to enable JavaScript to vote

Profile

Drama: Signal
Revised romanization: Sigeuneol
Hangul: 시그널
Director: Kim Won-Suk
Writer: Kim Eun-Hee
Network: tvN
Episodes: 16
Release Date: January 22 - March 12, 2016
Runtime: Fri & Sat 20:30
Language: Korean
Country: South Korea

Plot Synopsis by AsianWiki Staff ©

Hae-Young (Lee Je-Hoon) works as a criminal profiler and is also a police lieutenant. Even though he is a cop, he doesn't trust cops due to his own past experience. Back in 2000, when Hae-Young was in elementary school, his classmate Yoon-Jung was kidnapped and later found dead. Hae-Young saw a woman taking Yoon-Jung from school that day, but the police announced that the suspect was a man. Hae-Young even went to the police station and told the police officers that he saw the kidnapper and she was a woman. The police officers though didn't pay attention to him. The killer was never caught and her case remains unsolved to this day.

Hae-Young meets a reporter at a cafe to reveal bombshells about a celebrity scandal. Meanwhile, veteran detective Soo-Hyun (Kim Hye-Soo) is at the cafe staking out the meeting, unaware that Hae-Young is a cop. She arrests Hae-Young for stalking celebrities. While leaving the police station (the same police station he went to as a kid), Hae-Young hears someone talking to him. He looks around to find a walkie-talkie. The man who is talking to Hae-Young is Detective Jae-Han (Cho Jin-Woong). The detective though is from the year 2000 and he is investigating the disappearance of Hae-Young's elementary school classmate. Hae-Young and Detective Jae-Han begin to communicate via the walkie-talkie.

Notes

"Signal" takes over tvN's Fri & Sat 20:30 time slot previously occupied by "Reply 1988" and followed by "Memory" on March 18, 2016.
The criminal case depicted in the drama series is inspired by a true incident that occurred in Hwaseong, Gyeonggi Province, South Korea over the course of six years (1986 - 1991). 10 women were raped and murdered within a 2km radius ranging from a 71 year-old grandmother to a 13 year old schoolgirl.
Related titles (based on the true story "Hwaseong serial murder case"):
1. Memories of Murder | Salinui Chueok (2003)
2. Gabdong: The Serial Killer | Gapdongi (tvN / 2014)
3. Signal (tvN / 2016)
4. Tunnel (OCN / 2017)
5. Signal (Fuji TV / 2018)
Related titles:
1. Signal (tvN / 2016)
2. Signal (Fuji TV / 2018)
3. Signal SP (Fuji TV-KTV / 2021)
4. Signal The Movie | Gekijoban Signal: Choki Mikaiketsu Jiken Sosahan (2021)

Cast



Lee Je-Hoon	Kim Hye-Soo	Cho Jin-Woong
Park Hae-Young	Cha Soo-Hyun	Lee Jae-Han

Police: Cold Case Team



Jung Hae-Kyun	Kim Won-Hae	Lee Yoo-Joon
Ahn Chi-Soo	Kim Gye-Chul	Jung Hun-Gi

Police



Jang Hyun-Sung	Kim Min-Kyu	Seo Dong-Gab	Jang Nam-Boo
Kim Bum-Joo	Hwang Ui-Kyung	Detective Moon	Detective Kang



Jung Jong-Yul	Choi Hyun-Joon	Lee Do-Yub	Lim Wook-Jin	Oh Ki-Hwan
police sergeant (ep.1,16)	detective (ep.1-2)	Detective Park (ep.3-4)	detective (ep.3-4)	detective (ep.6,13,15)



Kim Sang-Il	Seon Yool-Woo	Lee Il-Sub	Jung Jong-Woo	Shin Mun-Sung
detective (ep.6)	detective (ep.6)	Chief Park Kang-Ho (ep.10)	Injoo detective (ep.14)	detective (ep.14)

Jun Joon-Woo

police officer (ep.15)

Police (Past)



Moon Young-Dong	Hwang Tae-Kwang	Jeong Gi-Seop	Eom Ji-Man	Min Dae-Sik
Kim Chang-Soo (ep.2,3)	Kim Jung-Je	Choi Seok-Won	Kim Hyun-Chul	PR police officer (ep.2)



Kim Jong-Goo	Park Sung-Hoon	Kim Hak-Sun	Yoo Yong-Bum
Kim Joong-Sung (ep.5-7)	Detective Jung (ep.9)	Park Myung-Hoon (ep.11-12)	detective (ep.13-14)

NFS



Jung Han-Bi	Lim Jae-Geun
Oh Yoon-Seo	medical examiner (ep.1,5)

Park Hae-Young's Family



Kim Hyun-Bin	Ahn Eun-Ho	Kang Chan-Hee	Ahn Hyeon-Jeong	Sung Ki-Yoon
Park Hae-Young (child)	Park Hae-Young (teen)	Park Sun-Woo	Park Hae-Young's mother	Park Hae-Young's father (ep.12,14,16)

Cha Soo-Hyun's Family



Seo Ju-Hee	Lim Hwa-Young	Song Ji-Woo	Ahn Jung-Woo
Cha Soo-Hyun's Mother	Cha Soo-Min	Cha Soo-Hyun's nephew	Cha Soo-Hyun's nephew

Lee Jae-Han's Family

Lee Moon-Soo

Lee Jae-Han's father

Kim Yoon-Jung's Kidnapping (2000)



Lee Young-Eun	Seo Jung-Joon	Kim Soo-Jin	Oh Yeon-A	Song Yoo-Hyun
Kim Yoon-Jung (ep.1-2)	Seo Hyung-Joon (ep.1-2)	Kim Yoon-Jung's mother (ep.1-2)	Yoon Soo-A (ep.1-2)	Kang Se-Young (ep.1)

Lee Chung-Hee

nurse (ep.1)

South Gyeonggi Serial Murders (1987)



Lee Shi-A	Kim Jung-Young	Nam Sang-Ran	Yoon Ji-In	Sung Hyun-Mi
Kim Won-Kyung (ep.2-4)	Kim Won-Kyung's Aunt (ep.2-5)	Hwang Min-Joo (ep.2-4)	Jung Kyung-Soon (young) (ep.2-4)	Jung Kyung-Soon (ep.2-4)



Choi Dae-Woong	Yoon Byung-Hee	Lee Ki-Sub	Hong Suk-Bin	Tak Sung-Eun
grandfather witness (ep.2)	Choi Young-Shin (ep.2-4)	Lee Jin-Hyung (ep.2-4)	Lee Mi-Sun's husband (ep.3-4,13)	Lee Mi-Sun's daughter (ep.3-4)



Kim Ki-Cheon	Oh Jin-Ha	Won Geun-Hee
Lee Chun-Goo (ep.3-4)	Sehoon Hospital nurse (ep.4)	bus driver (ep.4)

High Profile Burglaries (1995)



Jung Suk-Yong	Park Si-Eun	Choi Woo-Ri	Yoo Ha-Bok	Kang Joo-Hee
Oh Gyung-Tae (ep.5-7)	Oh Eun-Ji (ep.5-6)	Shin Yeo-Jin (ep.5-6)	Shin Dong-Hoon (ep.5-8)	Shin Dong-Hoon's wife (ep.5-6)



Lee Dong-Ha	Kim Myung-Joong	Park Jung-Min	Park Jin-Soo	Yoon Bok-Sung
Han Se-Gyoo (ep.5-8)	prison guard (ep.5-6)	Han Se-Gyoo's chauffeur (ep.6-7)	Jinseong Bank employee (ep.6)	attorney (ep.7)

Shin Da-Hye Disappearance (1995)



Lee Na-Ra	Hyun Sung	Yang Eun-Yong	Kim Geun-Young	Jung Byung-Ho
Shin Da-Hye (ep.7-8)	Kim Min-Sung (ep.7-8)	Shin Jung-Hye (ep.7-8)	Shin Da-Hye's mother (ep.7)	jeweler (ep.7-8)



Ahn Soo-Ho	Park Ji-Yeon	Ri Min	Kim Ryeo-Eun	Yoo Jae-Ik
vacation home caretaker (ep.6-7)	cafe waitress (ep.7)	Gwang-Jae (ep.8)	Kim Ji-Hee (ep.8)	Investigator Oh Seung-Joon (ep.8)

Heungwon Neighborhood Murders (1997)



Kim Yoon-Hee	Bong Eun-Sun	Lee Sang-Yeob	Lee Seung-Chul	Yang Seung-Kul
Yoon Sang-Mi (ep.9)	Joo In-Hee (ep.9-10)	Kim Jin-Woo (ep.9-11)	homeless man (ep.9)	street cleaner (ep.9)



Kim Sa-Hoon	Kim Kyung-Min	Lim Yong-Soon	Kim Ga-Young	Seo Eun-A
hiker 2 (ep.9)	Seo Young-Jin's husband (ep.9)	factory owner (ep.9)	ticket booth employee (ep.9)	Yoo Seung-Yeon (ep.10-11)



Lee Chae-Kyung	Song Kyung-Hwa	Kim Dae-Yoon	Kim Hye-Ran
Lee Soon-Young (ep.10)	convenience store owner (ep.10)	cashier (ep.10-11)	Sekang Electric Bulb employee (ep.10)

Injoo Female High School Student Case (1999)



Shin Yi-June	Jeon Su-Ji	Son Kyoung-Won	Park Eun-Young	Lee Dong-Hee
Kang Hye-Seung	Kang Hye-Seung (adult) (ep.13-14)	Kang Hye-Seung's father	student's mother (ep.11)	farmer (ep.11-13)



Hong Boo-Hyang	Lee Sun-Young	Ji Hye-In	Lee Dal	Kim Woo-Suk
farmer's wife (ep.11-12)	girl 1 (ep.11)	girl 3 (ep.11)	school bully (ep.11-12,14)	Lee Dong-Jin (ep.11-12,14)



In Sung-Ho	Maeng Bong-Hak	Park Young-Hoon	Lee Jin-Kwon	Seo Ji-Hoon
Lee Dong-Jin's father (ep.12)	dean of students (ep.12)	Min-Ho (ep.12)	bully (ep.12-13)	Jang Tae-Jin (ep.13-14)

Son Young-Soon

elderly recycler (ep.16)

Others



Son Hyun-Joo	Joo Myung-Chul	Jang Hyuk-Jin	Kim Gwang-Sub	Seo Myung-Chan
Congressman Jang Young-Chul	Kim Sung-Bum	entertainment reporter (ep.1-2)	bully student (ep.1,13)	news program guest (ep.2)



Keum Dong-Hyun	Lee Sang-Tak	Lim Chul-Soo	Sun Hak	Jang Yong-Bok
news program guest (ep.2)	room salon owner (ep.5)	informant (ep.6-7,9)	aide (ep.7-16)	congressman (ep.11)



Kim Jeong-Woo	Jung Hyun-Suk	Lee Jae-Eun	Jung Young-Joo	Lee Joong-Yul
womanizer (ep.11)	doctor (ep.11-12)	market stall owner (ep.13)	restaurant owner (ep.13,16)	restaurant customer (ep.13)



Hwang Seung-Un	Kang Chan-Yang	Choi Young-In
Han Do-Yeon (ep.13)	woman going to work (ep.13)	Injoo Hospital janitor (ep.15)

Additional Cast Members:

Kang Soo-Jin - News Anchor
Seol Chang-Hee - Jinyang Police Station reporter 1
Kang Pil-Sun - reporter
Kim Dae-Hyun - police officer
Yang Dae-Hyeok - Heungwon detective (ep.9)
Seol Chang-Hee
Ham Jin-Sung
Kim Jung-Pal
Kim Hye-Ran

Trailers

Image Gallery

Awards

tvN10 Awards - October 9, 2016
- (Individual) Grand Prize (Cho Jin-Woong)
- Best Actress (Kim Hye-Soo)
- PD's Choice Award (Lee Je-Hoon)
- Content Main Prize
2016 (5th) APAN Star Awards - October 2, 2016
- Best Actor (mini series) (Cho Jin-Woong)
- Best Screenplay (Kim Eun-Hee)
2016 (52nd) BaekSang Arts Awards - June 3, 2016
- Best Drama
- Best Actress (Kim Hye-Soo)
- Best Screenplay (Kim Eun-Hee)

Comments

CaptFredricks Oct 01 2023 10:37 am I've watched quite a few K-Dramas at this point, Stranger being one of my favorites, but this one still sits at #1 for me. The execution of the plot, the unique time travel element, the characters, the soundtrack, everything. I was on the edge of my seat until the very end.

I sincerely hope we get a second season for this masterpiece one day. It would be a crime against humanity not to make it, especially with how the final episode ends. 11/10 would watch again.

Tammie Sep 10 2023 2:59 am to everyone in the comments section being frustrated with this series, you're all so impatient. maybe stop reading the English captions and start watching it. it isn't called the GOAT drama for no reason. you all infuriate me. establish some patience and develop some investigation skills

Wendy Mar 17 2023 8:59 am I decided to watch it because I’ve heard good things about this show and when I see Lee Je Hoon, I click lol but I was really disappointed. Maybe the writing and execution just isn’t my style, but I was really underwhelmed. It constantly felt like scenes were missing, like important scenes were cut in the process so the scenes that are left felt disconnected. Also the plot twists in some episodes didn't entice me or make the cases anymore interesting. And the writing felt unnecessarily dramatic and out of place at times. For example, when Soo Hyun says she doesn’t know why Hae Young hates the police that much and then says he doesn’t understand the sorrows of being unable to catch the criminals. Except she knows why. Soo Hyun should knows first hand how corrupt some cops are and how quickly they’ll sweep things under the rug just close a case. There's even a part where Gye Chul (I think) says the cops are eager to catch the criminal so they can get a promotion. So it doesn't take a genius to figure out why anyone would hate the police. Also Hae Young does feel sorrow over not being able to catch criminals, hence him getting emotional and frustrated. Sure it doesn't do him any favors to get emotional, but it still shows he cares. So it felt like the dialogue was misplaced to make it seem like Soo Hyun’s saying something harsh but meaningful, but I don’t see it.

Kelly Mar 11 2023 9:43 am This drama is frustrating. I don’t know why others considered it the best crime kdrama. Maybe those perps haven’t watched the better ones. I tried watching until the end but by episode 12… that detective ahn was attacked in front or near the hospital! He was injured and about to die but male lead would rather hear unfinished revelations until his the victim’s last breath! So frustrating.The writer is such an amateur. Throughout episode 1-12 i never felt any excitement about the story it really felt lacking. You cant tell Me to not judge coz i havent seen the end but seeing majority of the episodes says it all. I like The characters though. Especially detective lee jae han. But the series is not as good as what others have said. Its overrated! Well all depends on your taste.

Aj024 Jan 22 2023 8:10 pm I think I already give up on Season 2 of this drama. Been years and looks like its writer also already forgot about it, if she's serious to give this drama a Season 2, she will work out the schedule of at least its main casts.

Jasjit Dec 27 2022 11:10 am Brilliant drama- superb acting. Especially By Cho Jin Woong and Lee Ji Hoon. Kim Hye Soo was good- but loved her in Under the Queen’s umbrella - she was superb in it. Hope they make Season 2 for Signal .?

Mary Dec 25 2022 11:50 am Watch iy for 3x now.I still cried for the detective, He is really a good actors..All of them are great!

Greentealover Dec 07 2022 9:34 pm Recently watch the show and I love how all the cast did a great job.

zoe Oct 16 2022 3:02 pm i hope there will be the continuation of this drama like the japanese adaptions

Rima Sep 20 2022 3:41 pm Brilliant drama, great actors and great performances! Loved this drama!!

miyazaki Jul 18 2022 10:53 pm Just another latest comment in search for any info on season 2.

There is an intention of creating a season 2, we just don't know when it will happen. It depends on the availability of multiple parties: Director, actors, etc...

If I have to profile this case, it seems like it is just not the priority of the people that could make Signal season 2 into a reality.

Still hope they could surprise us nevertheless.

Teacher Yoe Jul 03 2022 10:29 pm Hope there would be a Season 2 in the future days. How I love to watch these characters again.???

Ronak Solanki May 06 2022 9:37 pm Very rarely does a show or movie come and i call it " The Greatest stories ive seen on cinema " . Signal is absolutely my fav thriller show or one of the best things I've watched in my life . Great investigations , mystery drama love thriller suspense it has it all. And it has time travel and parellel timelines like Back to the Future

I know there won't be a season 2 but i will never give up and hope a transmission or notification arrives that Season 2 is coming ?? . Unbelievable show and now I'm just going to be disappointment watching anything on OTT .

apple Apr 13 2022 10:15 pm will there be a second season?

TUNISIAN Apr 07 2022 12:11 am Come on 6 years for season 2 :'( Just do it !!!!

Snail Mar 21 2022 9:08 am Signal is honestly good but is frustrating me to edge. When I started to look up good crime / thriller dramas to watch, I suddenly remember this show airing about mid year of 2019 somewhere but I only got to watch it this year. The plot of the drama got me hooked at some point, of course because it is goes along with the past and present line ( parallel worlds ). It 'did' really hook me up tho, I watched it during midnight and I certainly did get goosebumps ( idk if I'm overreacting but it actually happened ) and tons of 'oh my gods' in the first and second episode. It didn't 'disappoint' me unlike everybody else would definitely say because it IS that GOOD. Although it confuses me all the time and makes me want to scream at the main characters, the parallel world are really frustrating BUT it's still worth the watch.

— SPOILER !! I'm the type of person to drop off dramas that's not really my style and got me bored, tbh that episode with Shin Da-Hye did bore me a bit but I still stayed. My favorite part of this drama would be the Hongwondong Murders, it's really thrilling and enjoying to watch all throughout. Sangyeob's acting was superb there. It makes me want to hug his character at that moment. Also, I learned a lot of things from that episode.

For the ending, I would just say that I want to strangle the writer and director for ending it like that? /j

No because if we'll talk about it, there are still remaining unanswered questions about the drama. What's the real connection between Jae-Han and Hae-Young? How and when did the transmission all started and how would it end? Don't answer me with the "transmission started because of one's determination" because it doesn't make sense at all... It had been exactly 6 years since the last airing of the drama and I guess there's no hope for season 2... at least the writer should clear it out no?

Anyways, good thriller drama to watch tho. Good job to the three main actors for this drama. I'll definitely rewatch this again if I miss them. 9.5/10!

Du Mar 17 2022 6:07 am I think there's no hope for season 2, because the writer keep forgetting her promise. We wait since like hell and she just make a new story like de..vil what the shit. So yeah if she doesn't release Signal 2. I won't watch her story.

You can see jirisan drama, it's terrible & got bad rating. Welp, if she doesn't listen to viewers request, how she make us watch her story...?

Rusty greaves Mar 10 2022 12:40 am got half way through and gave up....sadly....Kim Hye Soo should have been the profiler and someone else the main lead detective.....Lee Je Hoon was cast wrong.....I found the character frustrating. after seeing Hyena and Juvenile Justice I chose this show for Kim Hye Soo....brilliant actress.

Monette cabib Feb 27 2022 9:59 am Another lee je hoon... Then i get to know cho jin-woong and kim hye.... I really really loved it!

Hope there is next chapter or continuation of this series.

When its lee je hoon, it's worth watching!

aster Feb 27 2022 5:58 am probably the best crime/thriller korean drama ever (and i've watched a lot!) the plot is amazing and it keeps you on the edge of your seat. i've been rewatching it every now and then. it's just 10/10!!

Fei Dec 15 2021 8:55 am I'm currently rewatching this drama, and damn....this is still as good as the first time i watched it 3 years ago. One of the best thriller drama i've ever watched. Kudos, Kim Eun-hee!

Nadia Nov 09 2021 5:53 pm I got so frustrated watching episodes 7 and 8 I just stopped watching this drama entirely. It was actually frustrating from the beginning. The walkie-talkie kept creating more and more drama/problems but I kept watching to see if there was a point to it; there wasn't. By episode 8 I'd had enough.

I like "feel good" dramas. This isn't one.

I've watched thriller/action dramas like this that were feel-good dramas. SO it's not like crime dramas can't be feel-good dramas. I stopped watching western TV series because they tend to drill the misery and drama nail hard. This drama felt like a western tv show so... no thank you!

Cherry Aug 03 2021 10:05 am Rewatching because its so good. I recommend. The end might confuse some people, because its a cliffhanger, but its really good.

trashhhhh Jul 23 2021 6:36 am I'm hoping for season 2 not because the drama is great, but because they left me with that kind of ending (cliffhanger)

Latte Jul 22 2021 10:43 am I'm not that trilled while watching it,,, the drama didn't reach my expectations

Jessica Jul 22 2021 6:45 am It's 2021 and I'm still hoping for season 2

zay Jul 03 2021 9:50 am why do people love this drama? the ending was the worst thing ever. i didn’t enjoy this show that much tbh. if i could i would take back the time i spent watching on this show & rather watch something else. idk just my opinion

Mau Jun 16 2021 8:51 pm Brilliant drama.

It's too hard to create a drama series that involves a time travel r a parallel world but this drama depicts it perfectly.

People should focus more on the story as it goes, and don't confuse themselves with questions coz in the end it will be answered little by little.

Jae-Han is too attached with his walkie talkie that when he was murdered in the past, he attached himself in that item to communicate with the present. I think this is what the whole story plot is about. It's about seeking justice and changing the past so that bad people will be punished. Jae-Han is a straight although sometimes too clumsy in decision making, he's a very good police officer who just wants to help people in need.

So Why Hae-young of all people? He's the last person, Jae-Han talked to but he's too busy to notice. Remember the 1st case when Hae-Young saw the real kidnapper. He;s telling everyone but no one is listening. Although Jae-Han is too busy he's the 1st person to listen, he even had the paper of hae-young's confession. I think this is the connection they both have.

Smart and not like Kaoru and LEE Jun 05 2021 12:02 pm Lee jehoon acting was superb, that’s why he is A-list actor. Yeoksiiii our chungmuro actor

Killl May 28 2021 8:26 pm Im done watching it. Pleaseeee season 2

Charmuse May 11 2021 9:23 pm I rewatched

Kaoru Apr 26 2021 1:05 pm i have nothing against this show because it’s indeed very amazing because of the plot that keeps you on the edge of your seat but there’s one thing that bothered me so much, it’s Lee Je Hoon’s acting.No offense but his acting was too much,he was practically overacting in all the serious scenes, it felt like he had memorized the script and just kept saying the dialogues with exaggeration.He acts fine in other scenes but when it comes to talking about the case details, he overacts ( he has a weird manner of moving his head side to side while he’s seriously saying the dialogues lmao) and it’s so hard to watch.I managed to watch those scenes by looking at the subtitles, but anyways this is a good show just Je Hoon’s acting could have been toned down

Priyam Apr 05 2021 12:13 pm Now I get why this is so hyped. It's AMAZING!!!! Now I am very impatient for 2nd season

LEE Feb 25 2021 10:02 am Lee Je-Hoon's acting on this drama is kinda over acting. Loool im having a hard time watching this series because i don't think detectives/cops act that way... like they are memorizing script when talking...now im not sure if wanted to finish this series because of him.

Jeremy Jan 31 2021 8:24 am Hope there will be a Season 2 soon

Ha. What. Jan 10 2021 9:35 am Lmfao did it really just end like that— did you really just to do that—what—

Rut Dec 16 2020 5:46 am Cha Soo-Hyun is the only character who act like a real cop, Park Hae-Young and Lee Jae-Han, i think they wanna be broadway actors but they fell so they become dramatic over reacting cops, both of them suppose to be smart but obviously they're idiot and most of all, the writer you're suck. The plot is good but how come you leave the red high heels case so quickly and design such a mess characters who ruin everything . "Justice", "Stranger" , "365 day" , "good detective" all of these are for real investigate drama.

flower Dec 13 2020 7:50 pm The only thing i dislike is a lil & vague love line between cha soohyun & park hae young. Just finished the 8th eps, but i smell the love line it's unnecessary ?

Jashik Nov 03 2020 9:14 pm Please make season 2 writer-nim

JR Oct 25 2020 3:29 am Just good, like I dont want to even go into details, its a great show. Ive seen many shows of the same genre but this is easily a best. However it needs a season 2

Dian Poedjo Oct 17 2020 6:18 am Season 2 on demand, please. This drama is so damn good and still open for story development.

Jen Oct 02 2020 8:37 am Plsss make a season two. Don’t cancel season 2!!!

jenn Oct 02 2020 12:57 am just rewatch this drama and I realized *again* that this drama is soooo good! couldn't describe more.

Wi Sep 07 2020 4:56 am Signal season 2 please!!! Do we need make a petition for that? C'mon!

Meow Sep 03 2020 10:42 pm I watched a lot of crime dramas and this one is the best..the plot was well written and the storyline are so heartbreaking..i cried a lot watching this drama from episode one until the final episode really made me cry..i never cry that much over a drama..recommended✅

AAA Aug 21 2020 10:54 am This is truly an incredible kdrama. One of the best (definitely in my top 3). The story and writing are truly incredible, and they're backed by an amazing cast. Just a warning for anyone interested, this drama is very tragic (there are a lot of sad scenes so just prepare...mentally). This is an absolute must watch for anyone interested in really good thriller/detective/mystery dramas. My only complaints are that there are some story bits that are a bit excessive and a few of the emotional scenes are dragged out, but overall this is an amazing drama. 9.5/10 (Also get ready for season 2 sometime in 2020 or 2021)

TripleM Jul 01 2020 11:15 am This drama and stranger are masterpiece. I cant believe I watched these dramas while they are still ongoing. Every eps are full of suspense. Best drama ever. So proud that I already watched them ?

ZZZ Jun 20 2020 10:43 am Legendary. In my opinion normally Lee Je-Hoon isn't a bad actor for his age. But in this drama his partners, especially Cho Jin-Wook, were really great. So, LJH's acting looked a little unnatural to me. Eventhough LJH's character have more difficult life, i felt anxious for CJW's character during drama. I think CJW gave a realistic soul to his character. Waiting for season 2.

Wawa Jun 14 2020 7:50 am The best crime thriller kdrama i ever watch.. The suspense logical all in this drama.. Superb acting too. Cant wait for season 2

Nour May 27 2020 3:07 pm what happened to the first case that of middle school girl?

Kate Dayday May 23 2020 11:25 am This is such a nice kdrama. 10/10. Is Season 2 really confirmed? Actually, if you will analyze the ending, it's already done. It may seem like two transmissions happened but I think there are actually more transmissions. This is purely based on my opinion so I'm not saying that this is right but it could be.

First transmission- it wasn't shown but remember when Lee Jae Han first sent the transmission? Park Hae Young told him to go to that old hospital but Hae Young can't remember him and Jae Han died. That means that they failed on it so he told Hae Young to convince him on 1989 because he knows that the transmission will happen again.

Second transmission- this time, they changed what happened to the first one, that's why Park Hae Young knew that the past has changed when he was being brought to the hospital. He knows that there was first transmission. But they failed again. I think Jae Han died when he was discovered from that car and by that time, Kim Bum Joo might have been alive.

Third transmission- it wasn't shown too but this time they may be able to save Jae Han from dying and Kim Bum Joo died instead of him. They knew that they will never be able to change the past. They worked on it for 15 years, but I guess cold cases weren't left anymore. They could've changed some of those. This time, Jae Han could've died on the future, February 5. So this means Hae Young still has the walkie talkie until February 5, 2015.

Fourth transmission- this time, they were able to solve everything. Jae Han knew that they will be able to catch the real culprit in the future (2015) so he hid in that hospital. No more cold cases, because I guess they never gave up on it on the third transmission so the only thing left is the real case. Jae Han hid in that hospital for 15 years. He waited because he knew that would be the right time to end everything. Remember in the 2nd transmission, he was warned not to go in that old hospital but he went anyway with his team. He used that method to Hae Young and Detective Cha by warning them so that could mean that the two also brought back up with them. Since he did not die anymore, Hae Young doesn't have the walkie talkie but I guess they have a new way of communication. How could Jae Han knows Cha Soo Hyun's number? That could've happened on the third transmission!

The confusing part is the lighting of walkie talkie again. Remember when they prevented him from dying during the second transmission? His walkie talkie lighted up again but there was no transmission to Hae Young and then he was saved. If you will connect it, he could've died (like I said on the third transmission) on February 5 again (since it lighted up) but there was no transmission to Hae Young so they were able to prevent it during the fourth. So that means they were able to save him that day when those guys went to Jae Han. Idk if I made it clear hahaha but they ended it.

Najihah May 12 2020 11:25 pm Season 2 confirmed. They going to start production in 2nd half of 2020. Finally after 4 years of waiting ?

Shin pd May 04 2020 2:26 pm Dear writer-nim and PD-nim Now is 2020 now and I’m still waiting for Season 2, hope all cast can play in season 2

Karma or drama Apr 26 2020 12:51 am Best crime/thriller drama ever!! Must Watch!! The story is logical and superb. Amazing actors bring me a lot of of touching moments. Its not all about the investigation but its about the justice, friendship, love and colleague relationship. I hope there will be a season 2 :))))

K Apr 19 2020 3:18 am Honestly one of the best Kdramas I have ever seen. The story has been captivating from the beginning and I loved that I didn't know any of the actors until this drama and they all blew me away. The cold cases were intriguing and heartbreaking to learn that some happened in real life and were similarly influenced by corruption and power. I loved the Opening and Ending theme songs too, the tone really fitted the drama. Stellar script, amazing acting, solid episodes from the beginning till the end. Even though the ending is open ended, I think I can live with that. I will be patiently waiting for Season 2 where we can finally have JH meet HY and for JH and SH to

Mikey Apr 09 2020 7:16 pm SPOILER REVIEW

One of the best dramas but the ending makes it feel like a waste of time. The problem that you have with time travel dramas is that it becomes difficult for the plot to remain organized. I wish that the story was completed. Now because of the final scene, it feels like we spent the entire time watching a "past story". Showing Jae Han in the hospital basically means he was just waiting for Hae Young and Soo Hyun to catch up to him. Then they show that he still has the radio which means that he is talking to someone even more into the future. It's really messy. How do we know these aren't time loops that happen again and again? Where is the "real" present time? The drama is fun to watch but it feels like a waste of time because you don't know what point in time you are watching. For 15 episodes you think you are following Hae Young but in episode 16 you learn that all that was just the past and Jae Han has been in a hospital waiting. ahhh so confusing.

Jana Mae Mar 25 2020 6:48 am I’m still waiting for season 2. I hope it airs this year!

ann lene Feb 28 2020 8:27 pm It bothers me how come they divulge their names over the radio. As far as I know, only code names are used by handlers.

Dalagang_Pinipilahan Jan 03 2020 10:34 am It somehow bothered me a bit that some of the cast didn't have their younger versions. Sometimes, putting a wig and fixing the hair just don't work.

Cheng Dec 06 2019 12:41 pm It took me so long to find this kdrama and I must say that this is a masterpiece!! I love the actors most specially Lee Jae Han. ❤ I'm happy that Lee Jae Han and Park Hae Yopung are alive.

I'm hoping for a Season 2. Don't give us a cliff hanger ending. I think we don't deserve that. Hahaha. We deserve the Season 2. Jebal!! It's been 3 years so please make it happen.

To all the people out there.. If ever you read this, please believe me that this Kdrama is worth to watch. Highly recommended ?

SageGrace Smith Nov 17 2019 10:31 am I found this drama to be so full and rich in content. High caliber actors, and story woven together almost seamlessly. The ending... I can deal with, I think it was handled fairly well. The possibility of another season would be awesome. Directing, acting, execution of story ~ truly, one of the best high quality dramas I've watched.

Rafael Nov 05 2019 9:50 am A side note, in reality statute of limitations in South Korea was originally 15 years like shown in the story, but it was extended in 2007 to 25 years and in 2015 the limit was removed for murder cases. The first story may have been inspired by 2003 death of a 15-year-old girl who was abducted and found murdered in city of Pochon, one of the cold cases for which the statue of limitations was amended.

Ellie Oct 09 2019 4:13 pm Side note-- people wonder about Det. Cha's age so... use her mother's comment that she'll be eligible for pension in 1 year (i.e. she's worked for the police force for approximately 19 years given the special occupation pension system for government employees in Korea) and the standard training (~8 mo. at the time), the fact that she couldn't drive at the start of the series and is suggested to be in her first career, that will put her joining the police force sometime between 18 (legal age) and 20, likely closer to 18, training (so let's add 8 months) so ~19-21 and add 19 years. So in 2015 she's probably about 38-40, possibly 37. I'd go with 37 simply because her mom seemed so pleased that Lt. Park was 27. Also, the series seems to want to keep her within the gap between Lee and Park, so that would balance it nicely given we have 86 as a year in which Lee is the lowest rank he's shown as in the series, so she's probably about halfway between the two, and Lee would likely have been between 49 and 53 in 2015. What do you think?

Sandra Bevan Oct 09 2019 5:28 am Hurry up and do season 2. Just finished season 1 amazing completely love it love it. I'm in limbo now wondering what's going to happen.

Gia Oct 05 2019 5:58 am The real murderer is finally found...

Please make session 2...

I'm waiting for

Eugene Jul 29 2019 5:47 pm The writer has already confirmed that there would be season 2 in the future. Yayayayay

Kaiana21 Jun 19 2019 9:08 am [SLIGHT SPOILER] Hands down one of the best dramas I've ever seen. Sure, you may be disappointed with the ending but I think the ending was so open that they knew there HAS to be a season2. I know its very unlikely but you never know ??‍♀️ Besides that, the drama itself was so well done and I am so glad it ended up becominwell known as I honestly thought it would be an underrated drama at the time. Every episode had me in tears at one point as the stories were just so tragic and the acting and writing made it so real ?? Personally, the ending was so satisfying for me. Maybe its because I was just so happy that they were alive "in time" I ended up wanting more of course but I was just so happy I finished it smiling because the ending is so open a second season is very possible ??

Yoo Hanna Jun 08 2019 9:33 pm If you only judge this drama from the ending not from the whole story and called this drama is the worst drama you ever watched, well, i think you didn't get the point of it and not watch this drama with your feeling. Yes, sure, this drama left us with a big confusion but i'm really happy that i ever watched this drama and it is one of my best drama. P.s, maybe, it's because people doesn't always have the same thinking and opinion but for me, this is one of the greatest drama that i've ever watched, i do not regret it

Nana May 20 2019 8:16 pm Don't watch this Drama you'll will just Regret it! Don't waste your time watching this. Don't get carried away with what the comments are saying, you well just end up Disappointed like me. To those who are hoping for Season 2 don't get your hopes high because most likely it will never happen.

I hate the Ending I don't know what the hell the Writer is thinking everything was rushed there a lot of things doesn't make any sense at all & a lot of things that need to be resolve most specially with the Evil CEO.

Who ever taught of killing the Puppy in episode10 was overkill! Seriously that scene was not even necessary!

Lena May 18 2019 9:27 pm The ending of this drama is so unsatisfying. The mystery is not resolved and we are left with a bait for a second season that probably will never come.

Mamo Apr 25 2019 3:10 am It took me long enough to finally watch this drama. I never go with the hype especially when it comes to Korean drama because of how The Heirs, Secret love and a few other so-called 'great dramas' received so much hype only to disappoint me, really. So I really took my time with this one and I was definitely not disappointed. Great script, great acting, great cast and crew.

Mika Apr 09 2019 8:26 am Certainly, Lee Je Hoon is one of my favorite actors. See him playing a role in the drama Tomorrow With You for the first time. His face looked very cold and stiff, but luckily he always choose the right role.

Lee Je Hoon's second drama that I saw was titled 'Signal'. Incidentally, I really like drama with the mystery genre and detective series. This drama certainly has different genre with "Tomorrow with You". I like this.

Lee Je Hoon plays a very good role. He is cold, smart, and ambitious to solve all the old cases that were not revealed. Starting from he found a walky talky in a garbage truck. Certainly so strange, because even without the battery in it, this walky talky can sound. Uniquely can be connected with the past.

At the end of each episode, this drama made me even more curious. Very well written stories make each episode feel complete and perfect. When this drama ended, I kept saying that this was the best drama I have ever seen! I gave him a perfect score, which is 10!

Kim Hye Soo and Cho Jin Woong also performed stunningly in this drama. Although their age is quite old, they play a very good role. There was nothing wrong with the cast. Everything supports each other to produce extraordinary drama!

This drama does not focus on romance. Although there is a little spice of romance between Kim Hye Soo and Cho Jin Woong, this complements the tense story that is quite tense. Making this drama is a little more sweet and humanistic.

Sometimes I also cry in a few episodes. Strong character, strong story, makes me felt away. I was crying of course. There are several stories that will touch your heart so you can't hold back tears.

Watch this drama. You will like it !!!

HEaLER Mar 11 2019 7:07 pm Still waiting for season 2 .... 3 years later and nothing :( When I finished it 3 years ago they said there will be one and they were writing season 2 but nothing after 3 years smh even the end of season 1 still open ! I still remember everything in it it was so good I really hope there is season 2 .. I doubt it but I hope will be ...

Nam Feb 23 2019 6:41 am Finished this kdrama and it was one of a hell Kdrama!!! I deeply fall in love tp CJW here ghaaaaad Hope to see him more!!! Ofcourse with KHS. I love them!!!! Plus Lee jehoon!!! Cant wait to watch your other kdramas. But for now, I want CJW and KHS to have a drama together!!! I love their chemistry!!! ??? this drama is worth watch so if you are reading this, goo watch it!!!! Its the best!!! ???

Linda Jan 17 2019 2:24 am Love this drama, have watched the remake Japan version but the Korean version is superb. The actor, screenwriter director have done a great job =)

Nona Jan 14 2019 11:20 am I love Jdramas Crime solving series. I am pretty impressed at the same time find some off scenes but i still like it. I just started watching it in korean now, Signal is good as well. I look forward to signal jdrama version. I know this is late but i really did it on purpose. I wanted signal japan to end so that I can compare. Lol! Looking forward to kentaro sakaguchi version.

Iyagi Jan 04 2019 5:59 am I loved so much this drama!!! Cast was amazing and the topic was More Amazing!!! The Best Crime Drama Ever!!! You don't have to think before watch, you should go and watch now!! This drama deserve exactly 10/10!!

Ore-sama Jan 03 2019 10:12 am I never thought Korean crime drama can be this good! It is not cliche at all!

austin Nov 08 2018 2:17 am looking forward signal 2

Ritika Verma Aug 13 2018 12:27 pm Zahid,you must try "Life On Mars" .its the best mystery thriller drama of 2018 so far and since signal is my personal favorite too, I know how much u will love this drama!! Try it! U won't regret it!

Jule Lee Aug 07 2018 5:01 am Zahid, then you must try TWO WEEKS. Its nice too!

Ara Jun 24 2018 11:25 pm I need season 2 please ??

Plamenka Jun 05 2018 12:07 pm Zahid you can try gapdong, tunnel and signal japanese remake.

zahid May 24 2018 12:27 pm Anyone please! Did you know another best crime drama like signal? Ohh my signal is the best! I want to cry

Ku.Gy May 19 2018 9:00 pm One if the best drama I've ever seen. Truly masterpiece. I just want to give standing applause for the casts, director, and screenwriter

Prettykr May 11 2018 12:27 pm the signal korean drama it's brilliant and amazing the cast, all the signal korean drama who make this whole and also specially Lee Je-Hoon, Kim Hye-Soo & Cho Jin-Woong is the best scene & acting. I need season 2 of signal because i need the closure...how can that happen??

Sese May 05 2018 5:29 pm This is pioneer of all crime dramas with the best quality but none could took Signal place as the best crime drama ??

Gayathry14 Apr 28 2018 2:19 pm My 50th k drama...best drama...amazing twists...unpredictable storyline...must watch...

San Apr 08 2018 6:51 am Omg!!!! This is one of the bestest kdrama ever.... hats off to each and every one who worked for signal...special thanks to writer,producer,camera man,lee he Hoon,kim hye soo and Cho jin woong...those emotional scenes of Cho jin woong when his first love died I too cried with him...he is such a natural actor...outstanding performance ajusshi..next is about Kim hye soo...she is so beautiful and well talented and her emotional scenes are also heart touching..when she talked with walkie talkie to her senior..god it was the best scene which I was waiting for...I cried hard...such a natural acting ...I hope writer should start working for season 2 with this same cast.. can't wait..hope in s2 they 3 will meet and solve the cases..and cha soo gym and Lee jae Jan's confession...thank you for the great message..IF YOU DON'T GIVE UP,THERE IS HOPE

Mia Apr 03 2018 7:08 am Best of the Best KDrama!! Phenomenal Plot and Casts!! Season 2 with the same casts pleaseee!!!

Esther Apr 02 2018 2:10 am Holy sh*t that was an experience wow I cried so hard Such an amazing message and crazy acting wow i can't even that was freakin amazing Thank you Cho Jin Woong was amazing Everyone was amazing wow i can't even i need a second season that was phenomenal

Marie Mar 19 2018 12:25 pm Awesome drama! One of the best. But cliffhanger ending. I need season 2, want to see them finally meet

safae Mar 12 2018 12:41 pm till now it's the best Supernaturl Drama for me and best action / crime / thriller kdrama ever ever ever

musa Mar 06 2018 6:07 am great Drama, when 2nd season will be released!!,its Deep drama top of the top

namsoo girl Feb 10 2018 8:06 am i'm dying for seasson 2. i hope it will come out soon

beyond the scene Jan 08 2018 7:21 pm its 2018 and still waiting for season 2! best action-crime drama ever!!

Denia Dec 31 2017 1:24 pm This drama was really amazingn and very interesting. The characters were interesting. At first i got confused on what was going on in the first three episodes but as I kept watching it, i understood what was going on. Im glad that detective is alive but sad that the main leads brother still died. I liked the ending because it opens up for a second season and i mnow the writer said that she will work on the second season and hopefully we will get a second season.

Gdik Dec 23 2017 2:23 pm This was awesome it made me look forward for the next series and yes i need season 2 or not. I dont mind. Dont miss out in checking out this drama. 4.9 out.of.5 of everything. The .1 is for the open ended ending. Haha but its superb

Siti Dec 17 2017 2:31 pm I need season 2!!!

Neexxa Nov 13 2017 9:45 am best crime drama ever!!!!

kdramaddict Oct 03 2017 8:03 am all you are looking for in a crime thriller is in this one drama. this drama has set the bar way too high for any others in this genre. realllly need a season 2!!!

suka Sep 23 2017 11:52 am Best drama ever!! The casts did a great job, kudos to Choi Jin Woong, love him as Lee Jae Han! :) And as a profiler, Lee Je-Hoon looks stunning here, not to mention Hye Soo's beautiful acting. I am still hoping for the 2nd season, though. Who can resist Lee Jae Han's charm, not me for sure hahaha....

Qipao Sep 06 2017 10:01 pm why i still looking this drama since 2 years ago?? becouse this drama so great.

didi Aug 29 2017 9:26 am Signal is the #1 kdrama and I love it more than anything. It's not the first one I watched and I kept watching other dramas after it but they just can't compare. Well written plot, characters and a mystery that keeps you hooked until the end. I'll always hope for a sequel but it's already perfect as it is.

Dheizie Aug 14 2017 10:50 am I cant wait to see season 2... first time i saw this series i'm so interested.... and makes me confuse.... i already saw the trailer of part 2... hunting mr. Congressman... season 2 please...

safae Aug 04 2017 4:52 pm it's just woow

Rin Jun 19 2017 12:30 pm i can't believe i almost dropped this drama on ep5. this drama is really great! the plot, the casts, the vibe, almost perfect. but the ending tho :( i'm hoping for season 2. there's too much thing that left hanged. i believe there should be further explanation for the last ep.

Inja Jun 18 2017 3:27 am The ending is a cliffhanger. It looks like they are preparing the audience that this series would have a sequel. I wish that the Injoo Gang Rape case will be resolve in sequel if tvN will decided to do so. Anyways, one of the best kdrama I have ever watched. I only watched this for one whole day and its worth it.

Hikaru29 Jun 14 2017 5:22 am This is one of my top favourite Kdramas of all time! The story is captivating and thrilling and the pace is good. My heart-o-meter literally went up and down with the plot twists. I also really love the cast esp. Cho Jin Woong and Kim Hye-Soo who delivered sterling performances and have moved me to tears in several episodes. Several of the supporting cast and side characters also played their roles really well.

This is a drama not to be missed!

Rischa May 21 2017 9:01 am I wNt seasonnn 2... This drama best ever in crime police... I want to know about lee jea han.. Park hea young and choi seo yun.. Season 2 please

Joyce May 21 2017 1:36 am @zahra Not that I remember. There's not much love scenes from the main character, just a one sided love. But it's nothing that makes the drama bad in any way, in fact I kind of liked how it didn't specifically evolve around love.

cherryblosom May 20 2017 11:22 am This is one of the best korean drama!!!!! No doubt. Fight me if you think this is not a good drama :p

Eun May 18 2017 11:57 am This is super extraordinary thrillers-mystery drama that I've been watching ever! I always recommend to friends of mine and everyone's love it!!! A lot of thrills mystery movies that i still know about what happen in the next but this! Really! I can't guess what happen. Great. You guys should watch this. I give 5 stars.

Min May 15 2017 11:21 am Confusing as it can get at times, I still enjoyed it...became a fan of Cho Jin Woong after watching Entourage and loved him here as well...but what was the ending about? Is there going to be season 2?

red May 14 2017 3:34 am i just heard about this masterpiece, and watch it straight from ep 1 to 16 in 5 days..its extraordinary in term of character performance and plotlines.. this is the drama that spurs the sudden growth of excellent high quality mystery-thriller drama such as Defendant, Queen of Mystery, Tunnel, Voice and others..a must watch for any thriller lover

Unexpected wonder May 13 2017 10:48 am Just binged watch this and now I know why it got so much hype. Each episode was like a grand orchestral symphony!!! Okey, so, when is this season 2...?

Rt May 09 2017 2:22 pm It's a master piece that can't be made again

MyGirl May 08 2017 2:24 am Season 2 please. I want to know about jae han...this finale episode make alot of question. Hope for season 2...

zahra May 02 2017 12:30 pm @joyce I want to ask you, is there any kiss scene in this drama?

Joyce May 01 2017 5:04 am I've watched so many dramas prior to Signal, but nothing I've ever watched has prepared me for this drama. Everything about it is amazing, the actors, the plot, the flow, and even the fact they based it off real events. I'm normally one that's not into shows that don't contain many romantic scenes or that are too centered on mysteries, but this one captivated me from the first five minutes to the end. I managed to watch the whole series in 4 days, and even though I missed on sleep, I had no regrets, this is absolutely the best drama series. It's fun to watch with family as well, it's something that seems to be interesting for everyone. I'm really hoping for a season two. I normally don't comment on dramas, but I feel too strongly about this one to not. I highly, highly recommend this to everyone

chanhee Apr 13 2017 7:56 am So far the first three episodes are great. I get to pause it sometimes when I get really pissed of by the cops when they fail to trust him when he did a big role in the first case. I love how determined Haeyoung is. Sometimes its just confusing when they jump from 2015 to 1989 and vice versa. But so far its good I love tvN's dramas.

I'm looking forward to ship Euikyung with Haeyoung and their scenes together!

Nessa Apr 13 2017 12:15 am OMG! I didn't realize that the guy from Strong Woman Do Bong Soon, Kim Won Hae, was the other cop here!! He played both roles really well! :)

Ginsang Apr 10 2017 2:36 pm Can't wait for Season 2. We want more of Lee Jae Ha. And of course, that song, THE ROAD, by Kim Yuna...aw mai gaaawwwdd!! I am floored!!!

Liyana Jawahir Apr 08 2017 6:38 pm It is a very great drama!

I dont know why some people commented there are too many flashbacks, but for me, all the flashbacks are something that I want to see. More important element of this drama are featured in the flashbacks.

Anyway, from episode 1 to 16, all you want from this drama is for Park Hae Young & Lee Jae Han to stay alive.

carol maloney Apr 07 2017 12:50 am This is the most riveting and excellent

police drama I've seen....the best acting, story, editing, music...I could not stop watching and every episode was worth the wait.  So well done...

lemOn_tea Mar 21 2017 1:02 am Daebak!!

At first I feel like some kind boring drama and the actor not familiar..but after watching 4th ep, I can't stop looking forward for this drama

same as nine: nine times time travel but not much romance in signal..

agreed for season 2

Amrutha Mar 14 2017 12:28 pm one of the best best korean thriller drama....dabeaaa...watta an actings guyssss...seriously...awesome korean drama..i giv credits to d writer n directer...n the well justified ators...Evn the villian in 8th ep HAN SE KYUN ...wow man...hatzzz off to u...u made it feel soo damn twisting kinda feel..too good..i wish u get mor n mor gd roles.. Good luck to SIGNAL team:)

Iffy Mar 01 2017 3:15 am Great story; somewhat predictable at certain points; too many flashbacks; and has a habit of wasting time. Could have been cut down to 10-13 episodes.

Dankon Feb 18 2017 1:05 am Great story, BUT

Too many unnecessary flashback and sometimes the male lead looks dumb (good actor tho)

Overall, it's a must watch drama

Saltanat Feb 10 2017 1:35 pm Season 2 please!!! I need to know if he stays alive... I want a happy end!

gumiho Feb 09 2017 8:23 am seriously, i agree this Signal drama is the best action-thriller of 2016 perhaps , in my opinion the best in said genre of all time years.

flawless story, real suspense, plot twists, etc all of those will 100% hook you for sure!! i can assure as i am its victim :D

oh btw, this deserves season 2

PEACHY Feb 06 2017 10:40 pm this is by far my favorite kdrama of all time, if not the only kdrama i'll forever love. I've watched it 2 times now, and it's still so exciting and just amazing. I love everything bout this kdrama and it's so well written. because of this drama, i came to be really intrigued in unsolved murders and violent crimes. Amazing jobon everything, hoping for season 2! And btw, this will not waste any of your time. please watch it! It is so unique!!

Yui Feb 06 2017 3:50 pm Let me tell you, this is the greatest crime drama ever aside from Hidden Identity and My Beautiful Bride. I'm a huge fan of crime-solving dramas that involves detectives doing their jobs and Signal is a good example. For all of you who wants to watch the real crime drama, I'd recommend this one. Although this drama doesn't have romantic plot (just a little bit in some scenes), this will keep you on the edge of your seat! I agree with other reviewers, I demand a season two as well!

domi Feb 05 2017 2:58 am will there be 2nd season? it cannot end like this, so many loose ends

nanosh Feb 03 2017 4:47 pm i'm in ep11 and i found something soo unreliastic..how they caught the murder in 2015 then park hae young discovered that they caught him already in 1998..what about the cadavres whose been killed after that year..how they can be alive how the murder can be convicted already..were they dreaming or what i'm so confused i think i'll stop watching

shally Jan 21 2017 12:18 pm it deserve season 2 3 4 5 so on best drama ever

A Fan Jan 20 2017 12:50 pm Seriously flawless. Plot was on point. Characters on point. Just enough every single episode. So happy I gave it a try. Choi Jin-Woo's was A++++ playing Lee Jae-Han's character. I've only seen him play the villain in dramas, this has definitely changed that. Loved everything about this drama!

Akashi Jan 16 2017 5:11 pm Best K-drama ever! I would not even imagined it would be possible to compare a "k-drama" to to hollywood level shows, but this drama can easily compete if not beat most shows in the world. The writer and director are amazing.

Dae Han Jan 11 2017 9:17 pm Signal is tvN's greatest drama. (Reply 1988 could've been but faltered in the final episode because the ending was rescripted as a result of a leak by a politician.)

toori Jan 07 2017 8:10 pm signal deserve season 2.

Mary Jan 07 2017 3:19 pm Its the best!10/10 all the actors did such a great acting..season 2 must be push through

gasenadi Dec 17 2016 4:29 pm SEASON 2 PLEASE!! Can only repeat everything the other comments have stated. My profound respect for writer-nim Kim Eun-Hee, who also gave us the riveting Phantom and Harvest Villa. I will now be sure to watch this writer's other dramas for sure. Such a magnificent cast of proven actors, including my beloved Han-Soem-ah from Chuno, Cho Jin-Woong, who I've followed ever since. Bravo, Signal!

Hotelier Dec 06 2016 11:57 pm Will they make season 2 of this? Signal is probably the best thriller - detective drama so far I've ever watch. The acting, cast, script, ost, all well done.

victoria Dec 02 2016 11:51 am its not on the top8 poll closed this year. so sad ! why signal not on the top8 list poll closed>? signal won best drama this year, why not on the top 8 poll closed. ? unfair !!!!

tsuyoi_hikari Nov 27 2016 1:04 am The best drama of 2016 without a doubt. All your questions are answered and no plot holes. I'm very impressed!

Emenems Nov 22 2016 6:56 am This is the best drama in 2016 so far. This is underrated. Great actors and great plot. Still hoping for season 2. Please!!

Sam Nov 10 2016 4:37 am Best drama that ever existed for me. Not even Western dramas made me in awe as much as this one.

yuewe Nov 07 2016 6:28 pm jai ho!

darkrailoy Nov 05 2016 9:03 am I love this drama after 38 Task Force.. I really love the plot. Hahaha try watch 38 task force.

Andrea Nov 02 2016 8:22 am Because of this drama. I don't listen to music with my headset on anymore (in public). I am just so scared. At first, I don't like to continue watching because of that radio transmission. But I continued anyway, and after episode 8, oh mo, I can't stop watching. And I replayed the whole series for how many times, just in case I missed some important details.

NEON Oct 29 2016 7:23 pm best drama in all channel 2016

ee Oct 29 2016 8:14 am season2 please. congratulation to make it best of the best kdrama.

YUI Oct 29 2016 7:25 am SIGNAL is the best of the best drama 2016. Signal deserve to won this title best korean drama 2016.

paku Oct 28 2016 7:03 pm if this is the korean best drama this 2016 i agree but if others won the best korean drama and not SIGNAL but SIGNAL already give the awards best drama. WHY you awards SIGNAL best korean drama if it is not Best korean drama.

number1 Oct 23 2016 11:16 am number1 best drama 2016 congrats!

venus Oct 18 2016 1:49 am best drama 2016 . congratulations! season2 please!

san Oct 10 2016 6:29 am This drama is so good, don't hesitate to watch it

ghadoor just Sep 30 2016 3:10 am though i loved DOTS and W but the plot was a mess in the middle of W Signal in the best drama in 2016, i got solo excited when i was watching it, though it's been two weeks since i finished it i still can't get over it MUCH LOVE for the cast, the main lead did a really good job

kathlyn Sep 26 2016 11:08 pm i like the story. good job guys!

Naomi Sep 25 2016 10:13 am Best drama of curse ! Well done. Congrats Hope for season 2

sheli Sep 25 2016 1:06 am best drama, good story, i hope the episode extend to 20 so that no need to season 2 of this drama. but congratulations to make it number 1 best drama.

runatuna Sep 18 2016 9:04 pm One of the best dramas I have ever watched (and believe me, I have watched many). I suddenly felt nostalgic so I revisited this page and now I am feeling more nostalgia. The plot is novel and the characters are dynamic which makes me glue my eyes to the screen. I would be incredibly sad if they didn't make a epilogue or a sequel continuing the plot. The ending is amazing and wraps up this drama perfectly (unlike most endings) but THEY CAN'T JUST LEAVE IT AT THAT. Honestly, this series should be continued forever (and hopefully with the same characters).

bluefin Sep 18 2016 4:23 am I dont usually watch kdramas, but when i do, i can ensure you, its really good, not average mushy lovey-dovey love story but well-written script, top notch acting, fresh genre, and complex plotline.. I like the back-forward timeline among the main characters, as someone who enjoy cop, crime, detective stories, signal manages to portray how a profiler and detective work together, plus the time travel element adds the "goodness" of the drama.. Hmm watching this drama makes me think cause lots of retired high level cops in my country have lots of power, assets, and can even run as candidate for governor etc, that highly unlikely covered by salary even through they have high rank, so lots kim bum joo here i guess.. Anyway, really enjoy signal, one of the best kdramas, id put it up along with misaeng, another great one. The ending indicates that it might have season 2 but i like open ending, already think of one but im too lazy to write it.. Hint: jae han's dad ticket (subway/bus)

Congrats for the awards, well deserved.

yuewe Sep 17 2016 8:06 pm wow! best drama! congratulations!

britney Sep 17 2016 3:28 am best of the best drama this year. congratulations and more power.

SUN Sep 16 2016 1:45 pm this is one of the best Korean drama I've ever watched. Nothing can be complained about. Every minute in this drama is worth watching. I've shed tear a couple of time watching it. Must watch!!!

smileyme Sep 04 2016 9:39 pm Amazing drama and set a higher bar for K-drama thriller. Very recommended

yui Aug 30 2016 8:59 pm best and excellent drama. signal is much better than to DOTS. congratulations for best drama SIGNAL.

shakira Aug 30 2016 8:35 am best writer,best actress KHS and best drama 2016! Conratulations! you won guys! much better drama than the others because of the story,very unique and amazing. congratulations!!!

Vivi Aug 29 2016 8:30 am WTF?!? How do I know about this just now?? I'm a huge action drama fan! Now I gotta watch it

victoria Aug 28 2016 11:12 am congratulations signal! you deserve it!

dan Aug 19 2016 12:33 am @sara i hope you watch this drama soon, and comeback here to see your opinion if they deserve the best drama or not.

kdrama Aug 04 2016 11:19 pm there will be season 2

sara Aug 04 2016 1:16 pm How it wins an award as a best drama! what about remember..i didn't watch signal yet but i'm sure that remember is the best and must win a lot of awards even the actors especially Seung Ho..unfair :(

Kfanasia Aug 01 2016 5:46 am Well this is the best drama i ever seen.period. and there's something bothering me about remake past seens.it's that detective cha i n 1997 using a computer with windows 7.how the hell was windows 7 be on police computer in 1997? And i don't know about korea.but i don't think they had those kind of automatic doors in police stations in neither 1989 or 1995. However Drama is killer.I have to say that.

Ray Jul 30 2016 1:36 pm This is one of view best kdramas I've ever watched in 2016. Those who loves suspense/thriller/crime series have to watch this!! The idea was very unique and the plot gave you headache. It was an awesome and epic twisted plot. I can't describe how neat and dynamic the story was, it made you can't stop watching. I recommend this for you to watch. No regret guaranteed!

beesan Jul 26 2016 2:43 pm Seriously one of the best dramas. I didn't want to watch it cause i do not like action, but my sister convinced my to do, and it was a very good one.

luvkimjiho Jul 26 2016 10:03 am It has been quite sometimes that I watch such a superb drama! I also hope there is season 2!

yoyo Jul 26 2016 5:23 am Love it ... i'll give 10 out of 10 ..

Honey Kim Jul 23 2016 12:23 pm Actually my mom loves the ost part 3 "That women who should leave".. Old soul song sang by PEARL SISTERS and singing back by inki for signal drama.. And me also fall in love with this song since I'm watching signal.. Mostly all the ost have its own genre from indie, rock & roll to soul song.. Its different from other ost in Korean drama.. This drama have it's own packages as a best drama ever in 2016.. Thumbs up

Sheng Jul 21 2016 4:45 am I got goosebumps whenever the walkie-talkie transmits.

TY Jul 19 2016 12:52 pm What a masterpiece. Done watching this drama actually but I just still can't move on! Such a great drama with great actors as well. Hands down.

Fourclovers Jul 16 2016 11:44 am All of the actor's acting were superb, this drama has thrilling and touching moments, good story plot that does not even need a cheesy loveline to keep the viewers hook to the show. Drama that make you want to watch on and on!

Queenshe Jul 10 2016 10:45 pm BEST suspense/thriller drama ever with superb and outstanding actors and actresses, and with areally really great plot also backsound. I'm Glad Lee Jehoon finaly got a really good Drama, with ball the sunbaenim that we dont have to ask about their act. I hope more for kdrama like this again in the future. And i hope i can see more Lee Jehoon drama/box office movies

Narra Jul 08 2016 9:45 am Easily one of the best K-dramas I've watched

signal Jul 06 2016 11:50 pm season 2 plzzzzzzzzzz

ichaa Jul 02 2016 4:47 pm Thankyou for make this drama, best drama thriller ever I seen.

Maria Jun 27 2016 9:52 am the best drama i really love that everything is amazing i need season 2:(.

KHS GREATEST FAN Jun 21 2016 3:38 pm U guys should watch Kim Hye Soo's new movie "Goodbye Single" (or Familyhood in Asianwiki). Judging from the trailer,it is super funny and silly!! Out June 29th along with Jo Jin Woong's new movie too,The Hunt! So our heroes surely gonna have a box office clash! Epic! =))))

maansc Jun 19 2016 12:55 pm At first, I was hesitant when I read the synopsis about this drama about the past and its relation to the present etc., however as I watched the first episode, I can't help but to be hooked on it. I am on the edge of my seat every time as the plot is reaaaaalllyyyy unpredictable; and I keep on watching episode per episode that I finished the whole series in a day! Until now, I kept thinking about it. Brilliant storytelling + great acting. Signal is a masterpiece. I always recommend this drama to my friends, it was worth watching. Definitely on my top 5 kdramas of all time.

Planetnida Jun 16 2016 11:15 am One of the best drama i've ever seen in my life. The plot is great, and the actors are incredible!

i think The best mystery drama was jist Ghost/Phantom and then i met Signal and this is such a very good production

eventhough i still curious about the ending, i really want to see Lee Jae Han meet Park Hae Young on the year 2015 :)

Lee Je Hoon Oppa Saranghae♥♥♥

adriana siriteanu Jun 15 2016 4:48 am super drama!!

Risdi Jun 11 2016 8:41 am Congratulation signal won the best drama in baeksang award,, best drama thriller ever I seen. I hope signal 2 will be released. hopefully

Cocojae Jun 06 2016 8:16 am i'm so happy that this drama won the best drama in paeksang award!! so so happy cause it really deserves more than that :')

dreamhigh Jun 03 2016 8:29 pm Cho Jin Woong is the best in this drama

keira Jun 03 2016 7:46 pm Congratz for best TV drama Baeksang Arts Awards 2016 !!! also Congratz Kim Hye Soo for winning Best Actress too so sad that Cho Jin Woong didn't win the Best Actor because i think his acting that makes this drama feels more real and cool.

once again Signal ... i believe Signal is the best Kdrama in 2016. 2 thumbs uP

Aveka Jun 03 2016 8:04 am can't move on from this drama

Cabs Jun 02 2016 10:53 am Ughh just finished watching this and was wondering if this ever have a sequel??? I hope there is !!!! The best I've seen so far!!!

fenfen Jun 01 2016 8:37 pm BEST DRAMA... it should gain popularity outside korea too... its really exciting, thrilling, thumbs up for the actor and actress, writer, director!!! amazingg...

KIM HYE SOO GREATEST FAN May 28 2016 2:35 am Haven't watched another drama since SIGNAL...I-CAN'T-MOVE-ON, ffs...!! Let's pray SIGNAL brings home many awards at Baeksang Awards (June 3rd everyone!)..Jo Jin Woong (best actor),Kim Hye Soo (best actress),Kim Eun Hee (Best Screenplay),Kim Won Suk (Best Director), SIGNAL (Best Picture) (and maybe Best Couple Award too?? Lee Jae Han & Cha Soo Hyun..aaaargh..) BELIEVE ME! This drama has everything to be crowned BEST KOREAN DRAMA EVER MADE...yayyyyy..I can't waitttt >_<..! Drama God please make it happeeeen!!

Indra May 24 2016 3:47 am Best Crime Drama Ever!!!! and now i can't move to another drama..

Azmi May 23 2016 6:46 am 22 May 2016 is the day i complete watching this amazing drama for a second time !!!!!

pratsU May 22 2016 12:50 pm I watched it coz of memories of murder, as it said to be roughly based on it...........but turned to very much different rather unique.........must watch series if you wanna try something out of usual rich guy poor girl kdramas

Riaaangg May 22 2016 10:47 am If you're into thriller detective kinda movie, or if you're simply love to watch masterpiece, this is a super highly recommend drama. The story is freakin well made, supported by great acting by the actors. Hell, this is gonna be my second best drama of all time. The first be it's okay that's love, and the third is reply series (88, 97, 94).. I'm gonna having a hard time forgetting this drama for a while and craving for a season 2. Ugh i hope time flies super fast >-<

Wenav May 21 2016 7:37 am just finished watching, this drama is really great and amazing, 2 thumbs up to the casts, director, writer and all production staff, its really worthwhile watching this drama, cant wait for season 2, congrats

shin May 21 2016 6:48 am Kim Hye-Soo and Cho Jin-Woong my idols

Emilou May 20 2016 4:26 pm This is the first time I stop on Asianwiki to give a review from a drama. This only shows how amazingly good I think this drama is. Signa sets the bar high enough to even try to consider other drama that don't meet the same expectations. Let's begin with the acting, well everything was on point cops, killers, victims and even witnesses. I particularly liked how Choi Jin Woong played the role of Lee Jae Han, it was impossible to not feel attach to his charisma. Lee Je Hoon and Kim Hye Soon were also awesomely good. I was also surprised by how well put the directing was. Episode 11 gave me hella chills.The writers also did an incredible job, though I have a couple questions lefts Spoiler alert** So if Lee Jae Han successfully changed the past by revealing the truth behind the Insoo case and the murder of the little girl, this means that the unit special case were never created and the law preventing statute of limitations in murder were never enacted as well. So what does this mean to the crimes that were supposed to be solved in the present by the special unit case? I'm talking of the Hwaesong murder ? What about the real culprit of the rapists case? Did they get to be arrested ? What the ending tells us ?

Overall a great drama, wish this would get more recognition from the public cause I really want to see a season 2.

SIGNALLLLLLLL FAN May 17 2016 7:22 am this drama is a total MASTERPIECE , it actually deserves more popularity outside of korea~

Jess May 15 2016 8:49 am This is like the first time ever I make a comment. Seriously this is so so good n I don't know if there will be another one as good as this one!!!!! Thanks Jehoon for going to Running Man. I saw you and that's why I came here lol!!!!!!! Damn please season 2 with the same casts n new ones as well XD n make that Tae-Jin go to jail plssssssss!!!!! and jae han be alive and the 3 of them get together n have a drink plsssssssss!!!!! XD

Patrick Tan May 13 2016 6:38 pm Superb drama......leaves one addicted from beginning till the end. Best I have watched......definitely love to see a Season 2 with same cast

Jennyd May 13 2016 11:04 am I really can't watch other dramas because of Signal. damn you show, why so good.

Ljh May 13 2016 10:54 am I already miss this drama. Nothings gonna change my love for this drama. Is there second season?

love_runningman May 12 2016 11:15 pm Best crime investigation drama ever!!! Full of twists! It just drives me crazy!!!

Sandara May 09 2016 12:57 pm I really really hope there will be a season 2 :(

Michelle May 09 2016 12:55 pm Best. Lee je hoon and kim hye soo are the best actor/actress. Their expression was just amazing. Full packed, the must watched drama. very very cool!!

Kal Lel May 08 2016 6:59 am This walkie talkie thing is just like the movie "frequency" when you can communicate with people from the past. But this drama is about detective from the present and the past work together solving a case from years ago. It's so great btw this drama

Jaison May 08 2016 4:08 am The best Korean drama ever. The writing..... directing...... and the acting are just.... wow. Thank you for all the feels and poetic Shakespearean irony. The lonely romance through the passage of time is so beautifully done. Thank you (cast, crew, writer and directer)

Dianacam May 06 2016 11:24 pm This is the best korean drama ever. I don't understand why lee je hoon is so good in acting

filiani May 04 2016 12:39 pm Very good plot, stellar cast, it's draining my mind, emotion, etc. Every second of it is a suspense. OMG, i really didn't expect that a k-drama could be this exciting, this is the best one!

iris321 May 04 2016 6:06 am One of the best k dramas that Ive seen... highly recommend it!

zooom May 03 2016 6:10 am i hope Cho jin woong win baeksang awards.. sjk is overrated

LA May 02 2016 8:40 am The plot is consistently unpredictable. It turned out a lot better than what i expected. The characters were portrayed really well to the point that I have this love hate relationship with them (hahaha), even the small details of their facial expressions and movements added to my cyclone of emotions. Kudos to everyone who made this possible, y'all did great job! Wishing to see more of quality tv series like this.

Dian May 01 2016 9:43 pm good job guys! to all of you!!!!!!!!!!!! keep up a good work!!!!!!!!!!! hope this drama to be success.,on the top8 polled closed this year.

Joanson May 01 2016 8:30 am This drama is a masterpiece. No words can define how great it is. My sleepless nights because of this drama are worth it.

bella Apr 26 2016 10:31 am great story, great plot line. i wish for the second season!! please make it comes true. btw i really adore lee jaehan haha

lisa Apr 23 2016 9:33 am i swear signal has the best plot line ever! it is so intense and amazingly unique! very recommended ☆

meme Apr 23 2016 12:42 am what a well done criminal drama. very touching and tense. my kind of drama. thumbs up for the staff, actors and actresses.

noiha Apr 20 2016 8:23 pm i'm so glad that i'm binge watching this instead of waiting for each week because imagine! the misery! lol.

now onto the review. first, the actors. lee jaehoon is good, but tbh he is a bit lacking in emotional scene. esp when detective cha died for a while or when thinking about his brother, his sadness doesn't really touch my heart and somewhat over the top, kinda reminds me of lee junki. but he gets whole lot better in second half and overall portrayed the character well. kim hyesoo is also great. she always had that charisma so her character totally suits her, but nothing really memorable about her acting or character, until something after midway. kinda awkward playing young rookie but totally knock it off as mature detective cha. and of course, my biggest applause would be for cho jinwoong and jang hyunsung. both really played their characters well and their actings shine through every scene. jang hyunsung really scared me without saying much. his fake smile, his glance, omg he's really evil! can't believe he's the same man who is a father of two handsome young sons xD and cho jinwoong.... why did i sleep on this talent all this time? his potrayal of clumsy yet idealistic lee jaehan is totally spot on. he just made me root for his character.

and though the acting is impecable, i think the directing and writing here are the ones who play the vital role. i like how smoothly they went from past to current timeline and how carefully they put the details. of course seeing reply series, we know how good tvn pds with retro setting and they probably have the default setting for all their dramas lol, but it's still amazing to see for me. the writing is also tight and i can only say "wow" with every turnout. it's something i've predicted but it still made me sighed in disbelief because they reveal it so theatrically (?) that i still shouted "daebak!" everytime lol. the pace is perfect, like how they put some lil bits of lee jaehan-cha soohyun for relief from all the tension.

overall, best kdrama i've watched in a while. thank you tvn!

acting: 8/10, writing: 9/10, directing: 8.5/10. overall: 8.5/10.

tia Apr 19 2016 9:58 am I finished all the episodes in less than 2 days and i gotta say this would be my favourite Korean drama of all time. Most importantly i started to fangirling on Lee Je Hoon who played Det Park Hae Young. I just love your acting so much. I've watched all your film that you act including Secret Door, Fashion King, My Paparotti, The Front Line, Bleak Night and Architecture 101. You were so amazing so keep up the good work. I wish to get to meet you someday. Love from your fan in Malaysia <3

Sarah lee Apr 19 2016 8:38 am I watched this drama first before DOTS, now i cant seem to like dots as much as the next person. This drama is so great, every other drama i watch just pales in comparison. I need a really good kdrama to get out of this slump

Diana Apr 18 2016 11:08 pm Best drama, best actor, best director, best writer. Very recommended!!

arachiza elric Apr 17 2016 11:07 pm am i the only one who like the bromance between gye chul n hun gi ahjussi?/ their interaction always funny... hahahhahha... love jo jin woong ahjussi... he indeed chemistry king.. hahahahha... love he n kim hye su relationship, bromance with lee jae hun and argument with kim bum joo ahjussi....

sashi Apr 16 2016 2:31 am wow signal daebak, love all the cast especially chan hee, sun woo <3, love you in click your heart web drama too, success for neoz school :)

May Apr 14 2016 9:35 am I just finished watching this series in less than 2 days! I was hooked. i watched it non-stop.

the idea for the story is similar to that of the movie Frequency, but this is really well-done,and unique from that one.

the pacing for the story is great. the plot is well-written. you think something is going to happen and then they pull a 180 on you. It keeps you coming back for more. The lead actors and the supporting actors did a phenomenal job. They were all fantastic.

my only issue was with the open ended final episode. if they come back with a season 2, then great! but if they don't... then the ending is a bit of a let down. I would have rather preferred it if they just ended it with 1 season. But i understand from the character standpoint why ending it there wouldn't be true to the main character's personality. And I applaud the scriptwriters and their decision to go in that direction.

peterh16 Apr 14 2016 7:15 am One thing annoys me though is when culture and religion gets in the way of the story line. They employ the concept of time communication so this series is the realm of Science Fiction. Yet koreans or Asians for the matter tend to not want to change the timeline. I think its obvious if a you stumble upon a time communication then its begging for the timeline to be change. Yet why be afraid to change it like the protagonist in this series. because of religious and traditional philosophies interfere, that asian countries have no business is doing sci fi series.

Sci fi explores all scientific theories, one being multiple timelines. There is no linear timeline, the concept of time and space go in multiple dimensions and not singular.

So please Kdrama don't mix Asian philosophies and sci fi mix because they can't. (referring to you Chinese time series) Apparently they are forbidden in their society to make time travel series that changes chinese history as they believe in Destiny being set in stone, but have the audacity to mix @$#$# Destiny philosophy with Sci Fi which is opposite of time be set in stone but is always in continuous flux.

peterh Apr 13 2016 11:07 am I decided to give this series a go since its a copy of hollywood film called Frequency where a fireman communicates with his son in the future who is a cop to catch a serial pyro. As the father is a fireman and dies in the past. I guess the they got idea from that as TVN is a associate of Fox international.

This show is as thrilling as the movie, and unique in its own way.

Sam Apr 12 2016 7:57 am The best and most unpredictable Korean drama!

You know this is done outstandingly and with attention to details when you only have several minutes until they finish the last episode and you still have no clue on how they would end it..  Highly Recommended! 10/10! ☆ ☆ ☆ ☆ ☆

Zynga` Apr 12 2016 6:39 am Wouuuwww..this is the best korean tv series

SHQA Apr 11 2016 11:58 pm Signal is one of the best Korean dramas. The writing was excellent, the mood music was perfect, and the acting was brilliant. Cho Jin Woong was outstanding as the unwavering Detective Lee Hae Jin. I only watch British police detective dramas, and I would rank Lee Hae Jin among my Top 5 favorite TV detectives.

KMW Apr 04 2016 11:10 pm masterpiece drama......the best.

sushi12 Apr 04 2016 9:11 am It's been a long time since I had a really good drama to watch during the weekends and this is just perfect. It made me think of Nine :) Good work tVn! You guys always air the best dramas of the year!

n3g Apr 04 2016 1:01 am awesome plot story... deabak

calcium Apr 03 2016 3:20 am I never expected this drama to be this good!

seon Apr 02 2016 8:00 am i've just finished watching this amazing drama (in three days and 0.5 ;) ) .... I'll admit it , because this drama played with my nervous system (my mood was changing a looot) this drama was totally worth watching ! excellent actors , very valuable screenplay (making the connection between the past,the present, and the future) i like this smart step , it made me believe :) worth 10/10 ;)

Azerine Mar 31 2016 7:30 am YOU MUST WATCH THIS DRAMA! If you want suspense, thrilling, logic, crimes, intense, this is the best drama for you. My rate is 10/10. It will give you goosebumps. Highly recommended! ♥♥♥

PS: I need season 2 ASAP

seon Mar 30 2016 5:42 pm ah ! i can't believe the great actor Lee Je-Hoon in this great and amazing drama ... i've just finished the first episode , i love this kind of dramas ( full of suspense, different crimes, smart investigations ...:) , i can't wait to see the rest of the episodes !

LEMON Mar 30 2016 3:06 pm I have to admit that even though this drama is one of the most memorable ones out there, it was not until the last case that got me hooked onto it. The storyline escalated drastically and the best part of it was how realistic the storyline was by bringing corruption and whatnot into play. As for the acting, everyone did a really good job playing their role, but the most notable actor was definitely Lee Jaehan in the drama. I know a lot of viewers are hoping there will be a season 2, but I personally hope there is no sequel because (1) I like the ending since it allows the viewers to believe what they want to believe and (2) a second season for dramas tend to ruin things. Last but not least, I finally realize why the actor who plays Sunwoo is so familiar! It has only been five years since "Can You Hear My Heart" came out, but he has grown so much in such a short period of time.

Queen Hyeri Mar 30 2016 1:08 am watch this and you will got the feeling of watching a 16 great movies! The actors, their acts, great storyline, awesome writer and best director in a movie! There is no average acting, even the dog can act well! But, this drama will blow your standard in whole new level I warn you! Wish they will have signal 2 amen

ana Mar 28 2016 6:56 am Such a High Quality drama. I'm in awe of Signal. Definitely recommended! Thank you for an intelligent watch with the cases that are based on real life events from South Korea. The best open ending ever!!! For others who are not satisfied with the ending, I can say that the writer and the director are obviously aiming for a Second Season that's why they ended it that way. We'll just have to wait :)

aj Mar 28 2016 1:03 am It was wonderful for 15 episodes: terrific time-slip detective series with superb acting. My only complaint is the muddled ending. It wasn't 'bad' just unsatisfying after staying with the intricate plotting for so long. Such a brilliant series deserved better--and so did the viewers.

Shinhye Mar 27 2016 3:56 am I'm hoping three of them will met at final episodes..but it okay I love this drama !!! It so awesome ..Glad that I choose to watch it >< but I miss it now...wish the ep was longer !! To Signal Team You guys did a great job .. Love U ♥♥

Duday Mar 26 2016 10:13 am OH MY GOD now i dont know what to do with my life because this drama just took me to another level every time i start to watch a new drama it just dissapoints me and because this drama is just so GREAT actors, story, plot, cinematography everything about this drama is the best. If you havent watch it you will be missing something big in your life ahaha this is even the first time for me to write a comment to any dramas or movies that i have watch (been watching dramas for 14 years) because this drama SIGNAL just realy blew me away!!!

cary Mar 26 2016 8:23 am Sincerely whole heartedly hope that season 2 will be made ASAP!!! Please TvN

cary Mar 26 2016 8:21 am This is *hands down* one of the best k drama ever!!! The story is mindblowing, it's smart, it's intense, it has great characters, great actors, great chemistry, great writing and directing. It got me so emotional to watch their hardwork to serve justice, because it is nearly an impossible job to really serve justice in real world. Clearly this is A MUST WATCH DRAMA! 10/10

Park Hae Young is mine Mar 25 2016 12:24 pm For real, this is the BEST DRAMA i've watched in my entire life. Such a nice story, casts, and plot ! Everything is perfect ! And I am a girl who is very hard to cry just from watching dramas but this made me cry a river. I'm crying so hard especially the Park Sun Woo's case TT And Chanhee ya i love you !

Sharalyn Mar 24 2016 5:10 pm In science fiction we are required to have what is called "suspension of disbelief," but in most K-dramas (and I've seen a lot) we're required to suspend disbelief even when it isn't Sci-fi. Most of the time, it's eye-rolling to the breaking point of ridiculous and unrealistic silliness. In SIGNAL, however, we have a Sci-fi/fantasy premise in which suspension of disbelief is absolutely required to make the story about transmission between the past and the future believable. But this series is so well done that disbelief is not just suspended, it is entirely by-passed. We are immediately immersed in the action and we stay there. I kept waiting for the story to break down, but with some forgivable exceptions, it held tight all the way through. As a Sci-fi/fantasy story, it was absolutely excellent, with a premise that clicked together like a solid scientific theory, as in, if it COULD have happened, this is the way it WOULd have happened. The logic was tight and intriguing without losing focus between weeks. The script was good enough that I was not jarred out of it with hoots of derision for sloppy writing, unrealistic characters, and silly dialogue as I often am in other k-dramas. The acting in Signal was wonderful, too, with special kudos to Kim Hye Soo and Cho Jim Won. Their deeply expressive faces helped move story and cement the believability of the script, helping to make the movie not just emotionally moving but even at times inspirational. (Thanks to all for not doing silly overacting.) The music was great, and I particularly enjoyed the opening theme; I wish I knew what it was. I am sorry I don't understand the words, but it's tone fit the tone of the series perfectly--full of loss, timeless longing, but with a meaningful "something" that kept it from being despairing. On all counts--in concept, execution, script-writing, acting, this is one of the best, if not THE best, K-drama I've ever seen. If all k-drama was this good, I'd never escape from the TV.

suranga281 Mar 24 2016 11:53 am Best crime thriller drama i ever seen... 10 out of 10... please make season 2.....

meiliin Mar 23 2016 12:38 pm one of the best drama I've watched! season 2 please!!!

Drama Mama Mar 23 2016 5:02 am This is probably the best kdrama that I have watched. The plot, casting and storyline kicked ass. Now that it is over, I'm in distraught. Watching everything else that comes after this will be a disappointment, because it really is that good. Now excuse me while I wallow in sadness because it has ended, and hope and pray that they make a second season.

Nhi Mar 23 2016 12:11 am This drama is the best drama ever. Not a moment of boreness. Great story and plot along with great acting! Hoping for Season 2 to come along soon. This drama definitely raises my standards for a good drama.

luki Mar 22 2016 9:50 am Wow, even from the 1st episode, the drama has already given me the chills.. I love the concept and I can't help wondering what's happening next. really good job!

LEE JAE HAN SUNBAE'S FAN Mar 22 2016 7:33 am honestly!! i love!! this!!! drama!!! so!! much!!! it is crazy now that it has come to an end, im gonna miss it for sure! one of the best drama I have watched considering I am a kdrama enthusiast. I have watched so many dramas that I can now say this kind of drama is my thing and this is just absolutely amazing. if you have not watched this yet, you gotta check this out! seriously!!! im not!!! even!!! kidding!!!

Crime Investigation Fan Mar 21 2016 11:30 pm Hats off not only to the cast of this drama, but also Director Kim Won Suk and Writer Kim Eun Hee who make the story possible. The story line is seamless, kudos to Writer Kim and I like Director Kim's way of filming, showing the different era with slightly off coloured film, slightly distorted just like how the film were made in the eighties. Very well made, and well done to the entire crew and cast ! This is the first time I am leaving a comment on a drama, and I hope to do so again with more wonderful work from Director Kim and Writer Kim. Looking forward to it.

Kim Na Na Mar 21 2016 3:31 pm It was an amazing drama! Storyline, plot, acting, casts,....AMAZING! WOW! Thank you! I'm still scared. xDDD Lee Jae Han's acting was on point! This drama should get more attention.

Mamanda Mar 21 2016 12:05 pm Must-watch!! AMAZINGGGG, made me can't sleep every night waiting for the next ep!

ines Mar 20 2016 7:58 am AWESOME!!! The best drama with the best ending so far

Megumi Mar 19 2016 7:45 pm Masterpiece.

Yo Mar 19 2016 7:33 pm Season 2 plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Ayat Mar 18 2016 10:58 pm LOVE IT SOOO MUCH !!!

This is CRAZY ! the author should get a prize for this incredible drama! I love the cast, the production and every single thing in this drama..

We really wish to see another season dear author, BUT with the same casts.

Many thanks,,

hanana Mar 16 2016 9:47 pm Woah... Finished this drama at exactly 11:23pm... Weird. So good, definitely watch! Wish the ending had more closure, but I could totally see a season two for this one.

KIM HYE SOO GREATEST FAN Mar 16 2016 2:01 pm SIGNAL is the drama ive been waiting so eagerly coz my idol,brilliant actress Kim Hye Soo,will star in it.She's the only korean actress that I highly respect,as she will choose GOOD PART AND GOOD SCRIPT ONLY!! i rarely watch dramas coz it lacks quality compared to K-movies (the last drama I watched was her drama Queen of Office).She goes down the hill doing drama is a VERY RARE occasion,but im so glad she did! At first i thought this drama will be just OK (not public channel+crime genre).But I was wrong! IT'S BRILLIANT!!! Ive been a silent reader,try to ignore some spoilers coz I wanna watch it if it's already COMPLETED (otherwise it could drive me crazyyy!).Just now finished watching ep 4 in the last hours and im currently crying while writing this..the ending was so heartbreaking =''( ...such a solid drama,acting,directing,writing..executed brilliantly in all aspects..Go watch it!.it's not your regular crime drama!..It'll turn your world upside down with its plot development and superb twis! IT IS A PURE PERFECTION!!

Yatie Mar 16 2016 8:45 am Outstanding, i love the ending really hope for season 2.

yasyas Mar 16 2016 1:11 am This is truly the best. A must-see, everyone!! I swear you'll enjoy this more than My Love from the Star.

doctorzais Mar 16 2016 12:40 am Good writing, amazing directing (one of the best in Korea), main actor acts the same in this drama as every other drama.....he needs to get some acting lessons. Female lead is good and 2nd male lead is outstanding. I like it alot.

Yass Mar 16 2016 12:27 am This was just the beesssstttt!!!!! Waiting for season 2....

kez Mar 15 2016 4:01 pm THE MOST DECENT K-DRAMA OF ALL TIME!! It still feels real and I just wished I was looking forward to the weekend because of this drama, but with just this much it is enough. It has been so consistent throughout and I just hope people receive this drama for what it is. It is a great drama, one I would recommend to a first timer in the k-drama world. It is that good!! Season 2 Sigeuneol.....11:23 really waiting!

Naro28 Mar 15 2016 6:50 am I do like this film. Cliff hanger, so mysterious, and not boring... I hope there is second season of this drama...

Misscat Mar 15 2016 6:18 am I love this k-drama.. Signal is the best..

trikuta Mar 15 2016 4:31 am This is way better than those hyped drama, and one of the few which didn't rely on romance and didn't drag the story had a very good substance with an excellent cast and acting I really hope just because of DOTS and others it doesn't get overshadowed because it an amazing drama which left NO loopholes.I am hoping for a second season .

crushonyou Mar 14 2016 11:36 pm Solid drama. I say that this was a better drama for this year.

Gado-Gado Mar 14 2016 7:15 pm Amazing k-drama,the story line are so epic!!,also the ost and music is very match for every epic scene in this drama,just need season 2 for this..

TNW Mar 14 2016 4:26 pm I DID NOT REGRET SPENDING 16+ HOURS OF MY LIFE FOR THIS. This drama is hands down the most amazing kdrama I've ever seen and even though this drama did not gain as much international recognition as other comedy dramas, I am so happy that the korean public are enjoying this show. After all, we don't bring in the money, they do. I'm usually not a supporter of kdramas having a season 2, but this is an exception. I feel like the ending is perfect the way it is but a sequel to this would answer all of my questions.

Dicza Mar 14 2016 2:44 pm I need signal 2 for livee. Rate 11/10

Pat Mar 14 2016 12:32 pm Signal is the best korean drama of all time! Thank you for the whole movie-like journey. This drama deserves all the awards. So happy that it was trending worldwide during the Finale.

Amy Mar 14 2016 12:28 pm This drama deserves a Standing Ovation! Brilliant in every aspect. No k-drama watching experience can get any better than this. 10.0/10

WY Mar 14 2016 9:20 am Seriously the most deabak korean drama that i have ever watched.

Please have season two! the writer is too brilliant!

Tammy Mar 14 2016 9:06 am whoaaaaaaaaa! just finished it and need season2 as soon as possible!!!!!!!!!!!!!!!!!!!

indi Mar 14 2016 8:40 am Awesomeeee !! Brilliant Drama ever !! Hope there will be 2nd season. What a story... Must watch !! Bravooooo...

Sasi Mar 14 2016 2:37 am wonderful, brilliant drama... !! hats off ... wat a story... last episode seems like story couldn't finished i think.. still they din't catch the main culprit... hope signal 2 will come soon... waiting for that... season 2...

Hana Mar 14 2016 1:04 am Need 2nd season ASAP with same cast!!! A Must Watch!!!!

pinksgate Mar 13 2016 6:20 pm For me this is the best of the best! well scripted, well directed, superb acting from the main characters! i do love the acting of Cho Jin-Woong as Jee Han, he is one of the greatest actor in Korea! I'm now his certified fan! I do know he is alive! and the ending is well deserved an applause! This will gonna be a blockbuster in the awards night. Congratulations! you deserved a round and round of applause!!!! Bravooooooo!!!!

Drew Mar 13 2016 5:29 pm Worst acting especially Lee, Je-Hoon, OMG take some acting lesson, that is couple hours of my life that I will never get back. If you are going to do a Law Enforcement and profiling drama please hire some technical advisers. Also, there are so much holes in the drama that its ridiculous. well the premise to start off is ridiculous but the writer should not deviate from its own structure. I will give Korea another 30 years before it get some what a decent drama. In the mean time just stick to romantic comedy where everyone looses their memory and have a three way love triangle.

Miky Mar 13 2016 4:12 pm Brilliant drama,hands down to all the cast,the writer,the director and all the stuff that brought us this amazing show!One of the best dramas in the last years!

dodas Mar 13 2016 3:36 pm one word...... FANTASTIC drama every minute is thrilling thank you tvN :")

Winson Mar 13 2016 1:25 pm Best drama this year.. Cho jin wong best actor in this drama!!

joo Mar 13 2016 1:13 pm If you love this drama and haven't seen Missing Noir M then you need to go watch that as well!

joo Mar 13 2016 1:05 pm Thank God this drama was good from start to finish!!!!!! What an ending :D

lalie Mar 13 2016 12:09 pm Daebak! Cinematography, casting and storyline were all great. Season 2 for this drama please!

Mini Mar 13 2016 12:05 pm This is my second time commenting on the final episode. I truly love this drama!!!! ❤❤❤ No words can describe how perfect this drama!

Andika Riani Mar 13 2016 11:26 am These drama is AWESOME! I see their BTS and fall in love more deeply to them. The actor and actress, music, writer, lighting, everything just so perfect! Best drama I ever see in these years.

Honu Mar 13 2016 10:34 am Just finish the final ep. Never have commented on any drama before. BUT this time is an exception. MARVELOUS !!! 대박 !!! 신기하다 !!! The drama is just so...so...so... DIVINE <3 <3 <3 ~~ Actors, director, writer, staff and even tvN - ALL ARE GORGEOUS!!! The ending is perfect whether there is season 2 or not. They got the justice back. They changed the gloomy past. They saved our Lee Jae Han 형사님. Thank you !!! We really appreciate. We love Signal ~~ Actor Jo Jin Woong! Thank you <3 <3 <3 수고했습니다. 최고예요 !!!

Unzila Mar 13 2016 9:26 am Love this drama... I am waiting season 2

monstar ❤ Mar 13 2016 8:25 am User rating above is broken. i cannot give it 110%

sarah ahmed Mar 13 2016 8:05 am i love this drama soooo much one of the best kdrama ever i need season 2

May Mar 13 2016 7:54 am I really need Season 2 with same writer and director, and actors... brilliant drama. good script, good directing and strong acting.

Ollie Mar 13 2016 5:35 am Great actors and actress. Story line - Amazing!

hollymool Mar 13 2016 5:08 am What a fantastic drama! So bloody good. Hope there is a second season. Well done TVN!!

Breiqhber Mar 13 2016 3:49 am This has been the most thrilling drama i have ever seen... i loved it cant wait for season 2

Sherry Mar 13 2016 3:07 am BRILLIANT!

Definitely one of the best korean dramas aired so far, the entire story line was amazing from the 1st to the last episode, and that's a lot to say because, let's be honest, in most dramas, there will always be those parts that are less interesting than others or even plain boring... There was no such a thing here, it was awesome the whole time, and had me begging for more after each episode!

Loved Loved LOVED Cho Jin-Woong in this series, I don't remember when was the last time that I admired an actor's act so much. He turned 40 just 10 days ago, happy birthday to him!

I strongly recommend it, and hope for a 2nd season too, but the likeliness of it happening is very unfortunately low I would say, the last episode was quite 'final' even if it might have given the false impression to be open at first sight...

beila Mar 13 2016 1:00 am at first i thought i need a season 2 but the moment i saw lee jae han's face, ahhhh that feeling.. i don't need season 2 anymore

Bouchra Siroua Mar 13 2016 12:52 am We need season 2 okay writernim?? Beautiful drama hats off to the writer who came up with this brilliant idea, to the director, crew, cast and especially cho jin woong!! They all did great, like nothing was missing, it has no holes! Ridicuslly amazing! Signal is the 2016's masterpiece. For anyone hesitating to watch this drama, i'm saying don't even thing it's a must see! Even the OSTs are unique! Everything about this drama is breathtaking Thank you to everyone who participated in this chef-d'oeuvre! I will miss it so much, and as our 3 leads still keep hope, i'm hoping for another soeson too

Boulangerie Mar 12 2016 10:09 pm Best K drama ever! Cried and laughed with the show. I sincerely hope that there will be season 2. I believe I will re-watch the drama again, it is just too good.

Mini Mar 12 2016 5:40 pm Brilliant drama!!!!

(A lil bit of SPOILER maybe)

I do love their ending! It looks like everything gonna be alright yet it gives us some space that allow them to produce Signal 2 *finger cross that it'll happen*

I LOVEEEEEE THIS DRAMAAAAAAA!!!

raggy Mar 12 2016 9:04 am i swear, this drama is life!

dolly Mar 12 2016 8:35 am Missing Noir M, RESET, Gap Dong, and God Gift 14th day..... and this wal all the best :-)

Summer Mar 12 2016 8:09 am I really recommended god gift 14 days , Phantom, All of them is great drama..

Summer Mar 12 2016 8:05 am I really love this drama, if u guys like this kind of drama. I have one to recommended, u should wacth God Gift 14th days , is really great drama..

Kim Mar 12 2016 12:27 am Watching each episode feels like riding an emotional roller coaster. Brilliant script, amazing production team, talented casts... this has got to be one of the best dramas of the year.

Rose89 Mar 11 2016 10:15 pm One of the best KD ever. I can't wait to watch the next episode..

yamazakikento Mar 11 2016 8:06 pm Great drama! Worth to watch! For those who doubt to watch, i swear you definitely have to watch this one. I have no words to describe this drama anymore. Lee je hoon and cho jin woong...they both give their best acting...i love them from now on!

Hoa phuong vi Mar 11 2016 6:30 pm It is a very wonderful acting, wonderful script. Truly good to last drop.

Migthy Thor Mar 10 2016 6:54 pm Brilliant story! I super-duper love Lee Je-Hoon and Cho Jin-Woong (",) CONGRATULATIONS !!!

zzz Mar 10 2016 9:30 am Only 2 last episodes. I definitely will missing this drama. 16 episodes has just 4 main stories and a set only in police station and crime scene, but their plot is incredible. Drama shouldn't have high budget, top cast only find the right story and put actor/actress eligible. One of my favorite noir genre after Missing Noir M.

whozdat Mar 10 2016 2:55 am @Sia lol you just butthurt r8,signal definitely worth watching,im support the writer and PD to make season 2....

Luhi Mar 09 2016 7:20 am Definitely WORTH to watch!!! I usually don't put much interest on thriller drama but I may say that SIGNAL is something special. It could make me laugh, cry, and emotionally dragged into the storyline. The plot is just fast and it will give us no chance to blink. It's just WOW. I watched 14 episodes in just 3 days. I may say that this drama is 10 out of 10... I used to like You Are All Surrounded but now this drama is on my top list of thriller theme drama. Daebak!

suk2014 Mar 08 2016 8:21 am I really love chemistry between park hae young and cha soo hyun. Their relation not as physically but emotionally. And its become strong by episodes.

hollmoolly Mar 07 2016 11:08 pm best drama ever. Loved every episode of it.

kimmy Mar 07 2016 10:10 am best drama ever. this is my favorite drama so far. from thre cast, acting, story line are all amazing. i hope the ending will be as perfect as episode 1st till 14th.

Sia Mar 07 2016 7:54 am WORST drama ever! Don't watch it!

jerry apag Mar 07 2016 1:54 am i suddenly find myself rooting for romance between the two main leads</3v still epi 9 my prediction for the ending is that lee jae han is alive somewhere, maybe he loses memory and lee je hoon and kim hye soo will have a relationship maybe a marriage?? i think Kim Hye-Soo will receive best actress in this series. or maybe nominated like in paeksang .

monstar ❤ Mar 06 2016 8:17 pm @Sam watch it NOW. its not a horror show, you wont get scared going to the bathroom at night. its just a drama full of suspense that will make your heart beat fast but it will not scare you, i promise :D

Kdrama lover Mar 06 2016 5:35 pm Best drama I have seen so far this year. Actually stracht that this one of the best drama I have EVER seen. The acting is so good. ALL the main characters are AMAZING actors their display of emotions are so real. I wont even start on how intriguing the plot is. Just know if you ever watch this drama be prepared for 3 things: 1) The amazingness 2) Sleepless nights 3) Tears and heartbreak

mokina Mar 06 2016 2:39 pm OMG this drama is soo GOOOOOOOD so intense n suspensful!! i wasn't going to watch it but Im glad I gave it a chance! Promise u wont b disappointed

Liight Mar 06 2016 2:18 pm one of the best dra. i felt like i was watching a hollywood movie. 10 out of 10.. must watch

Shams Mar 06 2016 1:50 pm @Sam and anyone else hesitating to watch this drama: Do yourself a favor and watch!!! It is SO good!!!!!!!!! Deff a very unique storyline. I want to find similar shows, any rec???

Kansai-maniac Mar 06 2016 12:36 pm This is the best drama, one of my favorite besides Misaeng. The story, script, acting...are all great. All actors can act. Briefly, it is comparable to the series of murders of Hongkong that I watched more than 15 years ago... Yes I cried alot.. I am so worried for Jaehan sunbae in the last two episodes. For fans' sake, please have a Singal 2.

Cyril Mar 06 2016 11:53 am A Korean drama in the highest caliber. Everything just takes your breath away. Perfection is an understatement. I just can't seem to give the right praise this drama so much deserves. Watch it and I tell you that every second of your time is totally worth it. You can thank me later :)

Sam Mar 06 2016 8:36 am "Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case. "? There's a Hong Kong drama with similar story line! I'm still thinking to watch or not to watch this drama.. I saw some comments saying they dare not to go toilet at night after watching this drama but I saw a lot of good comments about this drama too. I don't know any of the actor/actress in this drama. Somebody please tell me should I watch this?

monstar ❤ Mar 06 2016 3:37 am 2 more episodes to go but I will go out on a limb and say that this is the BEST F**KING KDRAMA OF ALL TIME! OF. ALL. TIME.

I dont know any of the actors, its not a romcom, its not in any of the categories of a kdrama that i usually watch, but im sooooo glad i found the synopsis interesting and decided to watch it from the get go.

Sassa Mar 06 2016 1:38 am Episode ratings are relatively high for a cable drama. Yey! This show is really awesome.

Emotional Signal Mar 06 2016 12:02 am The ost happy person by jo dong hee, supposed to be a happy song, but everytime it was played on the background, i feel sad . . Waeyo??? T_T

Bouchra Siroua Mar 05 2016 11:25 pm This is just getting better and better

- - spoiler alert*****

I swear I knew from the beginning it wasn't a suicide, It didn't make any sense to me why would he commit suicide if he is innocent? Too much emotion I couldn't handle the pain in the last two episodes I cried a thousand bucket of tears! It was so sad God I can't wait when is Friday coming?

Nikkie Mar 05 2016 8:00 pm This is the best police drama I've ever seen. CHLOE USA sums up everything that I wanted to say about this drama. You can feel all.of the emotions of the actors. I felt fear, anger, sadness and frustration. ...simply amazing amazing drama

addict Mar 05 2016 5:47 pm Acting from the leads are superb and storyline is intriguing. A must watch

Roger Mar 05 2016 3:08 pm Very underrated police drama. Wasn't expecting a lot, didn't like Lee Je-Hoon's character at the beginning, but as I kept watching the plot picked up and I was hooked. Great show.

Zeeyathestat Mar 05 2016 9:10 am I need more drama like this

Ayesha Mar 04 2016 4:50 am I noticed in ep 14 Kim Bumjoo's mother's house is sangmundong neighborhood

Tosin grey Mar 03 2016 2:38 pm This drama is amazing, it is so good. I like characters, suspense...everything. thank you. please keep the good work. Amazing writers.

Melody Mar 03 2016 4:51 am Really waiting excitingly for next episode... The preview..seem so sad..but still I want to watch it..HOpe this drama will have a good / happy ending...Please don't make sad or irrelevant end...! Thank you !

Chloe-USA Mar 02 2016 7:13 pm What an excellent drama this is! I'm enjoying every bit of it. Love that I feel the fear, the anger, the sadness, the frustration and the loss ... it is quite the emotional rollercoaster! Loving it! Kudos! Kudos! to the writers and director!!! They've done an amazing job defining every detail as things unfold! The performers are at the height of their performances....they complement each other so well....Lee Je-Hoon and Kim Hye Soo - you are both so credible I want to hug you at times! .....Cho Jin Woong: I think I'm in love...your face and those eyes show every emotion, confusion, anger and tenderness...You are totally amazing! and Jang Hyun-Sung: you are scary and I want to beat you to a pulp!!! Applause to all the cast! Job well done!!!

misscat Mar 01 2016 10:59 pm How about the ratings? I wish this k-drama get the highest ratings... :D I'm in love with Kim Hye Soo, their character in the past and future tottaly different... her acting skill is soooooo good....

pinksgate Mar 01 2016 9:34 pm I think this is one of the best korean action drama I've ever watched! every episode is full of suspense! it's script writing is meticulously done with brilliant writers! Especially with the excellent acting ot the three (3) main characters! and please take note, the other leading man is not in the present year, yet, they are doing the best of the best! a very highly recommended action drama to watch! one word?...awesome!!!

Anna Mar 01 2016 5:43 am Park Sun Woo look like Im Siwan ^^

sheli Mar 01 2016 12:09 am the most beautiful story that i've been watched in TVN Channel. Highly RECOMMENDED,super super super super AMAZING!!!!. I Love it!!!!! i hope that this will be on the KDrama top 8 polled closed this year.

1234 Feb 29 2016 11:24 pm This drama is amazing!!! Highly highly recommend it. I am on episode 12, the plot and characters in this drama are amazing, you will definitely not be disappointed. I hope it has a happy ending :)

kuroi-himitsu Feb 29 2016 9:49 pm Too much ups and down of emotions ever since episode 11. Hard for me to handle those moments of their struggle to reveal the truth of the cold cases. But, occasionally the drama treats you with the good old times between Cha Soo-hyeon and Lee Jae-han. Such adorable combi ^^ Waiting for episode 13 with mixed emotions of anxious and anticipation. Still hoping for miracles to happen. Please let miracle happen!

Sunyoung Feb 29 2016 5:53 am Nooo...why ... Should I stop watching???? I don't have guts to continue watching...Park Sun Woo is a strong character.. His look is so innocent and kind .. I can't help to feel sorry for him..what happen to him..is so terrible...police corruption is so crazy and bad...but It feel good to watch HaeYoung and Sun Woo close relationship...

Happy Person - jo dong hee Feb 28 2016 5:35 pm . . I'm so depressed in epi 12. . :( i cried a lot added with that stupid emotional song at the end clip of epi 12. . OMoooooo!!! I cant go on with thisssss kdrama!!!! T^T i feel sorry for detective cha so hyun!!

helomekinvegas Feb 28 2016 12:07 pm Nooooohhhhhh!!!! Tell me it isn't so. Finished watching episode 12. They (the writers) killed off the only detective that could've put the SCUMBAG Chief of Detectives away. Now, we are all hoping that the detective from the past was still alive somewhere in the present. With the power of television, we're now all hoping that the space-time continuum; especially now that gravitational waves have been detected for the first time, that the present will affect past. And we all will have the effect that we all hope for at the end.

nuha Feb 28 2016 11:53 am I hope this drama has a good ending, because a lot of drama in TVN has terrible ending

win Feb 28 2016 8:50 am Lee Jae-Han please survive T.T please someone help him!!! >.< i really love this drama. good storyline, good cast.. tvn is definitely best tv cable for drama.

Hyuna Feb 28 2016 2:15 am @YooinNa I'm curious too ><

I'm wondering if they could and change the past...will Park Hae Young still be a Cop Profiler...Because one of the reason he become cop is his own Hyung incident...What will happen if he's not in cold squad team..

With You Feb 28 2016 12:51 am Park Hae Young brother Park Sun Woo is handsome ! Heheehe..

YooInNa Feb 28 2016 12:29 am I can't watch ep 11 .. where the Injoo case start...!! I'm getting goosebumps and scared without reason....thinking it Park Hae Young Jyung case..will his hyung survive? Is he able to save his Hyung ? I'm curious but I can't watch..

DukSeon Feb 27 2016 10:22 pm Daebak .. This drama actually really thrilling...Speechless how they can change the past and future...It feel good to see all victim still alive after past deteectiv captured the killer...Although it just a drama but Really I'm impressed...!!! Thank you for the thrill and exciting feel..it actually a fun journey..!! Loved it ^^ + This is my 1st drama with actor Park Hae Young..He's good..searching for his other acting work..I'm officially one of your fan now..Lee Jee Hoon !!

dumbguk Feb 27 2016 1:38 am love korean dramas, but sometimes they either make up the stupidest details or simply out of thoughtless neglect...how can the entrance to psychiatric hospital for bunch of female volunteers no less, come right into the ward for the criminally insane. how come lee je hoon likes to waste time on his magical radio.

joo Feb 25 2016 7:46 pm I'm hooked!

Yo Feb 25 2016 3:12 pm Soooooo good

Cherry Feb 25 2016 5:55 am I hope Detective Lee Jae Han will be alive when the drama end..Hopefully both of them are able to change the past....It would be really awesome to watch Park Hae young and Lee Jae han met at the final episodes :)

Hyeri Feb 25 2016 5:46 am @Coco

Thank You for answering ^^ .. I thought I already watch but I didn't watch yet..No wonder Ep 9 look new..^__^

Bora Feb 24 2016 8:20 pm Last week episodes murderer Jin woo and his last victim..[I don't knows her name]....actually look good and cute together.. They should act together again as couple in new drama or Movie ^^

julie Feb 24 2016 1:08 pm what is the name of the intro song, and who is the artist? he has a deep raspy voice

Anh Nguyen Feb 21 2016 7:35 pm Who wrote this story is a genius.

Daebak Feb 21 2016 3:37 pm I really loved this drama...I enjoyed watching it every single week...But I loved Ep 8 much more..Our Awesome Squad just nailed it...That rich papa boy Hang Se Kyu...finally got arrested.. I'm jumping on my bed without realizing....haha that scene is so precious... I can't even move to Ep 9 ..just repeating Ep 8 so many times...The way the catch him is just amazing..Park Hae Young crushing him..wow what a feeling !!! Can you guys extend it to 20 episodes.. I don't want to let this drama go....

Coco Feb 21 2016 7:09 am @Hyeri: you've missed episode 8. that case was solved in episode 8. u gotta watch it, the best episode so far, cold case team nailed it! lol.

@Dawn: the ending song's title is '떠나야 할 그 사람' by INKII from Signal OST Part 2.

@amalist: lol i know right?? lee je hoon can't act?? which planet he/she came from like seriously lol.

n3g Feb 21 2016 5:37 am Awesome story.. really love this story

Ara Feb 21 2016 1:48 am The injoo cased still not occurred yet..Still 1997...So there are high chance for Hae young to save his brother..if he and det. Jae han change the actual past...probably his brother will still alive in 2015 .. Right??

Verna Feb 21 2016 12:14 am The core of the story is really similar to dennis quaid's 2000 movie "Frequency", which is the strange connection between two different timelines. Just started on episode 1 and it's got me hooked. A longer version of the American movie. :)

Hyeri Feb 20 2016 11:29 pm What happen to last week story? That girl who pretend to died but still alive case ! Is it solve??? I just remember it end with fingerprint match....am I missing something ?? Help me..I'm so curious !! Thank you ^^

Couky Feb 20 2016 8:20 pm @KdNut : I stopped to watch "Remember me" because watching the mafia acting like doggies was totally disapointing. It was not the main vilain the problem but the support of the mafia who can't stand on their own 2 feet alone and WORSE! They're totally aware and dislike not helping the hero.

So no, I don't recommand that serie and also the heroine is totaly laughable and the hero acting like a lone wolf too who because he was disapointed JUST once sweared to to dislike the system forever.

Signal characters are more beleivable instead. The fucking cop in the past is not a lone wolf by choice but mostly because none of the veterans-camarades beleive in him except for the young female rookie who become a totally badass in the present.

Every time, I saw the poor policeman of the past, I've respect toward him and saddness. Respect because even he can't save everyone he trying all his might to do his job! Because he beleives in justice and he is going to taugh it to the hero of the present with the female inspector.

There is no super man in this serie, it's team work that count wich is more beleivable because alone you can't do much (except if the writers are kind wth you) and the policeman of the past kinda represent that.

Tony nguyen Feb 19 2016 12:07 pm This drama is so good that i woke up all night to watch 8 eps. It is so tough, i can't stop the tear when the mother in the 1st case crying out to the killer. Thx Tvn give us a quality drama like this. Thx a lot. Keep moving on. Fighting.

suk2014 Feb 19 2016 11:45 am Bobop: i recommend for you to see god gift: 14 days. One of the crime thriller that i like.

alice Feb 19 2016 12:56 am FYI, Every episode is based on true crime which is committed in Korea before..

Mikaaya Feb 17 2016 2:37 pm Daebak.....this drama so interesting!!its have been so long time I didn't enjoy watching drama

amalist Feb 15 2016 7:08 pm This is so much better than gapdong. This is an awesome drama!!!!!!

lavino Feb 15 2016 6:35 pm Nice drama so far. But sadly a copy of the Hollywood movie called Frequency staring Dennis Quaid. Still pretty good so far so I hope this doesn't disappoint. I have more faith in TVN stuff.

KdNut Feb 15 2016 1:00 pm Gap Dong is ok, the acting is just fair, the supporting actress is actually much better than the lead actress. The story line is extremely predictable, and starts to really drag halfway thru. If you're completely bored, I suppose it's watchable. Personally, I would recommend the new series "Remember", a different genre, but done quite well.

kdramaslove Feb 15 2016 10:47 am @bobop gapdong is better

monstar ❤ Feb 15 2016 9:54 am @bobop. Yeah, somebody tell us if Gapdong is as good as this because im gonna watch it asap. This series is awesome in every way.

HyeNa Feb 14 2016 1:24 pm First time watching I thought it boring drama...but I continue watching it because I love this kind of genre and Tvn drama usually amazing... yes it getting interesting week by week..and O just got hooked & addicted...Really shock when that van explode .. With Detective Cha inside..thankfully they able to change the past..I start to loved this drama..the surprise curious exciting is fun feelimg... Looking forward to Ep 9 !!! Signal team Fighting !!

lena Feb 14 2016 12:10 am OMG i need another drama to watch while waiting for this to end so i dont have to wait every week for new eps to come out. Any suggestion for another drama to watch while i wait for this to end? IM DYING cause of the suspense!!

Kika Feb 12 2016 9:24 pm Love this. Hope both leads fall in love!!!

bobop Feb 11 2016 11:02 pm does anyone know if Gap Dong is as good as this???? or at least almost as?? I LOVE THIS kind of drama but its so suspensful bc i have to wait for new episodes to come out

Dawn Feb 11 2016 9:03 am I am hooked. However, what really has gotten to me is the Intro Theme song. I may not be able to understand the words, but it is a haunting tune. Can anyone tell me the name of the song and maybe the artist? Thanks :)

Moyi Feb 11 2016 7:42 am I'm just thinking about the case of Yoon Jung will reappear, in which case it was in 2000 something (i'm forget thats year) and now they 're solving cases in 1995. If the YoonJung's case really will reappear mean Yoon Jung can live again? There anybody think same with me?

whozdat Feb 10 2016 8:55 pm really interesting drama,i recomended for you all who dont mind non romantic genre

monstar ❤ Feb 09 2016 10:44 pm episode 6 was perfectly awesome. the music and the expression of detective park hae young in that explosion scene was daeeeeeebak, i cannot stress it enough so yeah, daeeeeeeeeeeeeeeeeebak.

Angela Feb 09 2016 3:57 pm I wonder if they are going to stay true to the storyline in the American movie Frequency?

hanhannahna Feb 09 2016 12:25 pm Daebaaaaaaaaaaaaaaaaaak !!! Dramas are getting interesting this year !! First ; remember war of the son and now this !!! woooooooow

dhebbie2t Feb 09 2016 1:06 am Only 1 word for this drama. DAEBAK!!!!

amalist Feb 08 2016 11:46 am Somebody said lee je hoon can't act on comments omg I'm laughing hard

kaiana21 Feb 08 2016 2:23 am This drama deserves high ratings honestly!!!!!!

northerngirlt Feb 07 2016 10:29 pm Really interesting drama. Suspenseful and full of heart. If you don't mind overlooking all the timey stuff, this is entertaining without being over the top.

Hazel Feb 07 2016 11:05 am I am liking this more and more If they can cry I will cry too

young Feb 06 2016 10:00 pm lee jae han should never have listened to park hae young. the kid acts like a know it all , rambling a few lines from profiling 101, keeps unnecessary lies, and he the actor cant act. the rest of the story is daebak like everyone says.

Hin Feb 05 2016 4:00 pm Daeeebak , daeeebak and daeeebak

Chloe Feb 04 2016 4:00 pm This is one great drama. Has a very strong cast who are vastly diverse and extremely talented. They totally compliment each other's performance. Bravo! and kudos to the writers/creators!!!!

Floooo Feb 02 2016 6:33 pm The best drama in 2016..... Each case will be served like the big screen that makes seems that every case comes easy to understand and flow that have a common thread. Previe are always curious to watch a sequel. Daebak for acting of them...

noona Feb 02 2016 4:12 pm Daebak drama like a movie

monstar ❤ Jan 31 2016 7:26 am Ep 4 and Still going great. I love the way they show the past by changing the style of the camera or is it the video resolution? Like watching an old movie. Its like HD video for 2015, and analog for 1989. Great concept, i love it!

nana Jan 30 2016 10:41 am The drama is amazingly good. Anyone who hasn't started it already,should. The ratings are also daebak. Yesterday's episode hit 8+. Happy to see that it's getting recognition

jin joo Jan 30 2016 7:58 am I find lee je hoon is too much here.

sungdukseon Jan 30 2016 7:57 am @yeonara yeah, actually it's just a drama.. idk if it happened in real life, could the police guessed "she might be near here to watch her work", run quickly and find her easily instead of many people walk on the street...lol

powell Jan 30 2016 1:01 am for a cop, and one that is supposed to be quite smart, he seems to take a batteryless walkie talkie for granted...

duboki Jan 30 2016 12:53 am and jehoon acting sux.

duboki Jan 30 2016 12:50 am and as somebody else already commented, jehoon can tone down his theatrics, he finds talking to someone from the past so puzzling, yet not give a second thought to a walkie talkie that comes to live with no battery.

duboki Jan 30 2016 12:41 am good show, but wish they are more creative dealing with the causal loop temporal paradox, future changes the past changes the future.... so far their depiction is just typical of story dealing with such topic, some unexplained changes in the present caused by some changes in the past, and only one person is aware of it.

like everyone on here, wish this turns out to be an awesome drama, writers hwighting!

Kwangvatar Jan 29 2016 2:06 pm It is jaw dropping amazing and honestly I have been hooked. I just think that the acting is flawless and the story is interesting because it doesn't always go in the favor of our protagonist. Plus the directors style is one point!

kaila Jan 29 2016 1:12 am one of the best drama so far... got the thrill and suspense at the same time.love the cast and the story. waiting for an intense episode...specially,how would they save detective lee jae han from that time difference and that walkie talkie.

monstar ❤ Jan 28 2016 8:36 am That sangil psychiatric institute has alot of arkham feels, and that batman photo...well, must be gotham referencs. I love this drama, so awesome

kai Jan 28 2016 7:17 am really expecting much from writer-nim~

so far until 2nd episode so good, can't wait for the next and next.

it's only a matter of time until i ship Lee Jehoon, Kim Hyesoo ,Cho Jinwoong, and others. And following their next project.

Fighting writer-nim! i wonder if anyone know her SNS, i would like to follow her ♥

monstar ❤ Jan 27 2016 5:45 pm @wren IKR? tvN is just killing it in the drama department. for me though, it started with oh my ghost last year. but Signal is just so darn good. i know its too early to call it but i have high hopes that the rest of the episodes will be just as good as the first 2. tvN fighting! good story, good writing, and directing.

wren Jan 26 2016 6:19 pm its going to be a disappointing year for kdrama, what is the likelihood of a drama that can be better than signal and reply 1988?

Sally Jan 26 2016 4:40 pm 2 eps so far, and i'm in love. it's just so so so good, exciting and intense. i really love it and Lee Ji Hoon.

jane Jan 26 2016 9:54 am This drama is....simply amazing. I was watching very attentively the entire 2 episodes. The wait is killing me.

Lalanga Jan 25 2016 2:20 pm What!!! Just 52 votes:( this drama is really good. I think i have never watched drama like this drama:))) AMAZING DRAMA!!!!

Yeonara Jan 25 2016 10:23 am @sungdukseon, Park Hae Young has seen the woman when he was young, surely he knows how she looks like. And he did say that the woman would be near to watch her "work". So it is not unnatural to find her easily.

dysan Jan 25 2016 12:40 am really like the camera work when they depict the past, it has the aged korean movie look.

dysan Jan 24 2016 10:47 pm so far so good especially with similar plot to the movie frequency, with good actors kim hye soo and choi jin woong, minor annoyance with lee jehoon overacting, hope he settles down.

KRAMA FAN Jan 24 2016 9:12 am OH MY GOD. I just finished the first two episodes and i have got say it is just AMAZING. The plot seems so cool and the leads are talented actors. cannot wait till episode 3!!!

Chie Jan 24 2016 8:49 am One of the better police dramas in Korea (:

sungdukseon Jan 24 2016 6:58 am The story idea is great, but somehow park hae young's hypothesist comes very quick and make it looks nonsense. How could he guess the suspect very accurate and easily find her in the street on episode 1...i just dont get it.. well, i will keep watching it because of lee je hoon.

ut Jan 23 2016 8:01 pm the korean version of Frequency (2000)

soopaman Jan 23 2016 3:58 pm @ara its to get unstuck in time with roger kwok

tzvior Jan 22 2016 3:47 am Go to this site just because i want to know what's next after Reply 1988. And WOW ! It's KIM HYE SOO !! AAAAAAKKKKKKHHH ❤ I hope this drama is as good as Bad Guys or better or cooler whatever -_- But i'm already excited tho

Ara Jan 21 2016 7:42 am Hmm.. isn't the plot seems like an old chinese drama that been air ages ago? Well I'm waiting for greater thing from this.. =D

TikaOxav Jan 20 2016 11:05 pm Omooo omooo can't wait to watch it ^^

XXXX Jan 18 2016 6:47 am Omoo cant wait to watch this!

aya024 Jan 17 2016 6:22 pm wow looks like an interesting plot

jazzy Jan 14 2016 7:28 am wow this looks interesting ! gonna watch it for sure

monstar ❤ Jan 06 2016 12:52 am this looks really interesting, im so gonna be watching this drama. tvN fighting!

KimYo Dec 20 2015 1:23 pm Looks really good. Can't wait to watch it :)

Alvissa Dec 19 2015 11:38 pm The plot remind me of the US movie Frequency. Definitely gonna watch this drama!

kai Dec 08 2015 12:58 am Can't be fooled by such interesting 1 sentences premise.

It's Kim Eun-hee writer!!

Phantom, Sign, 3days are awesome with her. Her writes so cool, realistic, and incredible addicting!!

kai Nov 18 2015 9:09 am omo omo! got excited just by reading the one sentence premise.

So far, the casts are interesting, too.

aaaa!!

Hani Nov 01 2015 8:50 am Yayy Kim Hye Soo unnie!!! I miss her so much since The Queen Of Office.. This must be splendid:)

Die hard fan of kim hye soo Oct 15 2015 9:19 am Wow...Wow...Welcome back to my favourite Angel kim hye soo...:-)

Oz Sep 21 2015 10:08 am Okay, enough guys.. No YEH, PSH, LMJ, GHJ etc like you were dreaming about. This is like perfect casting.. Auw auw auw Kim Hye Soo Ahjumma is going to be badass here ^^

pinkup Sep 15 2015 2:07 am I would like to see Jang Keun Suk and Kang So Ra... Because of the director, Kim Won Suk, I think the drama will be marvelous :)

Kim Sep 04 2015 9:57 am Lee Min Jung or KWON YURI please..!!!

dong Sep 04 2015 1:02 am Gong HyoJin , Han Sun Hwa, Da Hee Lee

PSH fan Sep 03 2015 3:33 am I would love to see PSH take this challenge. It is about time she shed the poor student image.

Unzila Aug 30 2015 7:35 pm Gong hyo jin please

koohyesun Aug 27 2015 10:33 am koo hye sun pleaseee ^^

neea Aug 24 2015 9:00 am Gong Hyo-Jin? Jung So-Min?

han Aug 21 2015 4:09 am What about Kimsoeun?

김백송 Aug 20 2015 11:26 pm Lee ji hoon.. yes !! I have waiting for ur next project and here this .. See u in TVN

Ailee Aug 20 2015 3:49 am Kang So Ra for a female lead!

Avant Aug 20 2015 2:23 am I would love to see Park Shin Hye as female lead. =)

victoria Aug 19 2015 8:40 am this drama first time called ''COLD CASE'' . I hope the cast of this drama is popular like hyun bin and yoochun. and leading lady is moon chae won . if that case happen it will become on the top 8 listed in 2016.okay

Nills Aug 16 2015 6:35 pm they will represents the pass and the present..Eric Moon and Park Shin Hye...another good aura to watch for...

Nills Aug 16 2015 6:33 pm hmmnn...interesting plot..in my mind this will be perfect for Eric Moon for the lead actor and Park Shin Hye for the lead actress...my opinion is just an opinion so pls don"t mind my post...thanks...

time traveller Aug 10 2015 2:12 am woah. indeed what a plot. tvN's been on a roll with dramas these few months. excited to know who's gonna star in this. daebak

Henry Aug 06 2015 6:51 am Wow what a plot!!! Is it an adaptation from american film/webtoon or something? I've nvr watch a drama/movie with such storyline b4.. It must be really great.. Kudos to the screenwriter who come up with the storyline.. I hope Lee Jong Suk will lead this drama.. It'll be nice to see him in an action-thriller project:)

petti Aug 06 2015 6:34 am looks like a unique plot! i dont know if im ever gonna see my dream couple (hyun bin& yoon eun hye) ever in a drama together i really hope that i will maybe in this drama? pls someone make it happen

External Links

Official Website

Signal (Korean Drama)

Contents

User Rating

Profile

Plot Synopsis by AsianWiki Staff ©

Notes

Cast

Police: Cold Case Team

Police

Police (Past)

NFS

Park Hae-Young's Family

Cha Soo-Hyun's Family

Lee Jae-Han's Family

Kim Yoon-Jung's Kidnapping (2000)

South Gyeonggi Serial Murders (1987)

High Profile Burglaries (1995)

Shin Da-Hye Disappearance (1995)

Heungwon Neighborhood Murders (1997)

Injoo Female High School Student Case (1999)

Others

Trailers

Image Gallery

Awards

Comments

Leave a Comment

Comments

External Links