RamenLover: Text replace - "name=Lim Il-Gyu (1978)|Lim Il-Gyu" to "name=Ryu Sun-Gyu (1978)|Ryu Sun-Gyu"

2026-01-01T08:24:10Z

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RamenLover: Text replace - "name=Yoo Jung-Rae" to "name=Seo Eun-O (1988)|Seo Eun-O"

2025-02-11T18:11:29Z

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2023-02-25T21:26:52Z

‎Others

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{{DramaBanner}}{{ImagePortrait|File:On The Verge Of Insanity-MP02.jpeg}}

==User Rating==
{{#w4grb_rate:}}

==Profile==
* '''Drama:''' On The Verge Of Insanity (English title) / No One But a Madman (literal title)
* '''Revised romanization:''' Michiji Angoseoya
* '''Hangul:''' 미치지 않고서야
* '''Director:''' [[Kim Keun-Hong]], Choi Jung-In
* '''Writer:''' [[Jung Do-Yoon (screenwriter)|Jung Do-Yoon]]
* '''Network:''' [[MBC]]
* '''Episodes:''' 16
* '''Release Date:''' June 23 - August 26, 2021
* '''Runtime:''' Wednesday & Thursday 21:00
* '''Language:''' Korean
* '''Country:''' South Korea

==Plot Synopsis by AsianWiki Staff ©==
Choi Ban-Seok ([[Jung Jae-Young]]) is a veteran engineer, working as a developer in the consumer electronics division of Hanmyung Electronics. He has a calm disposition and a warm heart. He also has a sense of humor, but he faces the biggest crisis of his 22 year working career. To avoid being caught up in a wave of dismissals, he is transferred to the personnel department. He is completely unfamiliar with the personnel department. He decides to survive in the personnel department and not quit this job.

Dang Ja-Young ([[Moon So-Ri]]) is the leader of the personnel department. She was promoted to the position recently. She is a workaholic and she wants to become the company's first female executive. Choi Ban-Seok is a new member of the personnel department. She doesn’t know what to do with him, but her life slowly changes by working with him.

==Notes==
# "On The Verge Of Insanity" takes over MBC's Wednesday & Thursday 21:00 time slot previously occupied by "[[Here's My Plan]]" and followed by "[[May I Help You]]" on October 19, 2022.
# Ep.11, which was originally scheduled to air Wednesday, July 28, 2021, will air Wednesday, August 11, 2021. The delay is due to broadcasting of the 2020 Tokyo Olympics.

==Cast==
{{CastPictures4
|1picture=File:On The Verge Of Insanity-Jung Jae Young.jpg
|1name=Jung Jae-Young
|1charactername=Choi Ban-Seok
|2picture=File:On The Verge Of Insanity-Moon So-Ri-1.jpg
|2name=Moon So-Ri
|2charactername=Dang Ja-Young
|3picture=File:On The Verge Of Insanity-Lee Sang Yeob.jpg
|3name=Lee Sang-Yeob
|3charactername=Han Se-Kwon
|4picture=File:On The Verge Of Insanity-Kim Ga Eun.jpg
|4name=Kim Ga-Eun
|4charactername=Seo Na-Ri
}}
===Hanmyeong Electronics Changin Campus Research Building===
====Research Center Director====
{{CastPictures1
|1picture=File:On The Verge Of Insanity-Kim Joong-Ki.jpg
|1name=Kim Joong-Ki (1966){{!}}Kim Joong-Ki
|1charactername=Go Jung-Sik
}}
====Quality Assurance====
{{CastPictures3
|1picture=File:On The Verge Of Insanity-Kim Nam Hee.jpg
|1name=Kim Nam-Hee
|1charactername=Shin Han-Soo
|2picture=File:On The Verge Of Insanity-Park Sung Geun.jpg
|2name=Park Sung-Geun
|2charactername=Gong Jung-Pil
|3picture=File:On The Verge Of Insanity-Jung Yeo-Jun.jpg
|3name=Jung Yeo-Jun (1993){{!}}Jung Yeo-Jun
|3charactername= Gil Chang-Hwan
}}

====Purchasing Team====
{{CastPictures2
|1picture=File:On The Verge Of Insanity-Park Won-Sang1.jpg
|1name=Park Won-Sang
|1charactername=Paeng Soo-Gon
|2picture=File:On The Verge Of Insanity-Son Ye-Ji.jpg
|2name=Son Ye-Ji (actress){{!}}Son Ye-Ji
|2charactername=Park Da-Som
}}
====Product Planning Team====
{{CastPictures2
|1picture=File:On The Verge Of Insanity-Jung Sung-Hoon.jpg
|1name=Jung Sung-Hoon (actor){{!}}Jung Sung-Hoon
|1charactername=Yoon Ki-Joon
|2picture=File:On The Verge Of Insanity-Oh Yoo-Na.jpg
|2name=Oh Yoo-Na (1981){{!}}Oh Yoo-Na
|2charactername=Heo Ga-Young
}}
====Research & Development====
{{CastPictures4
|1picture=File:On The Verge Of Insanity-Oh-Yong.jpg
|1name=Oh Yong
|1charactername=Pyeon Dong-Il
|2picture=File:On The Verge Of Insanity-Ahn Nae Sang.jpg
|2name=Ahn Nae-Sang
|2charactername=No Beyong-Kook
|3picture=File:On The Verge Of Insanity-Song-Sub.jpg
|3name=Song Sub (actor){{!}}Song Sub
|3charactername=Yang Hyung-Tae
|4picture=File:On The Verge Of Insanity-Goo Min-Hyuk.jpg
|4name=Goo Min-Hyuk (1982){{!}}Goo Min-Hyuk
|4charactername=Jeon Myung-Woo
}}
{{CastPictures8-5
|1picture=File:On The Verge Of Insanity-Dong Hyun-Bae1.jpg
|1name=Dong Hyun-Bae
|1charactername=Ki Jung-Hyun
|2picture=File:On The Verge Of Insanity-Baek Min-Hyun1.jpg
|2name=Baek Min-Hyun (1985){{!}}Baek Min-Hyun
|2charactername=An Joon-Soo
|3picture=File:On The Verge Of Insanity-Kim Kyu Do.jpg
|3name=Kim Kyu-Do (actor){{!}}Kim Kyu-Do
|3charactername=Cha Kyu-Won
|4picture=File:On The Verge Of Insanity-Kim Yoon Seo.jpg
|4name=Kim Yoon-Seo
|4charactername=Jung Sung-Eun
|5picture=File:On The Verge Of Insanity-Jung Hyun-Chul.jpg
|5name=Jung Hyun-Chul (1985){{!}}Jung Hyun-Chul
|5charactername=Sung Do-Gyun
|6picture=File:On The Verge Of Insanity-Yoo Jung-Rae.jpg
|6name=Yoo Jung-Rae
|6charactername=Eo Hae-Mi
|7picture=File:On The Verge Of Insanity-Kim Ye-Eun1.jpg
|7name=Kim Ye-Eun (1989){{!}}Kim Ye-Eun
|7charactername=Oh Hye-Yeon
|8picture=File:On The Verge Of Insanity-Lee Hye Ji.jpg
|8name=Lee Hye-Ji (1992){{!}}Lee Hye-Ji
|8charactername=Kim Hye-Ji
}}
====Motor Team====
{{CastPictures2
|1picture=File:On The Verge Of Insanity-Lee Sam Woo1.jpg
|1name=Lee Sam-Woo (actor){{!}}Lee Sam-Woo
|1charactername=Kang Min-Goo (ep.3-4)
|2picture=File:On The Verge Of Insanity-Yang Jae Hyun.jpg
|2name=Yang Jae-Hyun (1988){{!}}Yang Jae-Hyun
|2charactername=Yoo Woo-Jong
}}

===Hanmyeong Electronics Changin Campus Office Building===
{{CastPictures5
|1picture=File:On The Verge Of Insanity-Cha Chung-Hwa.jpg
|1name=Cha Chung-Hwa
|1charactername=Shin Jung-A
|2picture=File:On The Verge Of Insanity-Lim Hyoun Soo.jpg
|2name=Lim Hyoun-Soo
|2charactername=So Sang-Wook
|3picture=File:On The Verge Of Insanity-Cheon Hee-Joo.jpg
|3name=Cheon Hee-Joo (1997){{!}}Cheon Hee-Joo
|3charactername=Kye Bo-Ram
|4picture=File:On The Verge Of Insanity-Kim Jin-Ho.jpg
|4name=Kim Jin-Ho (1962){{!}}Kim Jin-Ho
|4charactername=Bae Jung-Tak
|5picture=File:On The Verge Of Insanity-Lim Il Gyu.jpg
|5name=Lim Il-Gyu (1978){{!}}Lim Il-Gyu
|5charactername=Oh Jae-Il
}}

===Hanmyeong Electronics HQ===
{{CastPictures1
|1picture=File:On The Verge Of Insanity-Jo Bok Rae.jpg
|1name=Jo Bok-Rae
|1charactername=Chairman Han Seung-Ki
}}
{{CastPictures9
|1picture=File:On The Verge Of Insanity-Kang Joo Sang.jpg
|1name=Kang Joo-Sang (1964){{!}}Kang Joo-Sang
|1charactername=No Jae-Yeol
|2picture=File:On The Verge Of Insanity-Kang Yeon-Woo.jpg
|2name=Kang Yeon-Woo
|2charactername=Park Hoon-Jung
|3picture=File:On The Verge Of Insanity-Park Jin-Soo.jpg
|3name=Park Jin-Soo (1971){{!}}Park Jin-Soo
|3charactername=Seo Yoon-Taek
|4picture=File:On The Verge Of Insanity-Kim Jin-Goo.jpg
|4name=Kim Jin-Goo (1967){{!}}Kim Jin-Goo
|4charactername=executive
|5picture=File:On The Verge Of Insanity-Kim Shin-Yul.jpg
|5name=Kim Shin-Yul (actor){{!}}Kim Shin-Yul
|5charactername=executive (ep.5)
|6picture=File:On The Verge Of Insanity-Park Ki-Ryoong.jpg
|6name=Park Ki-Ryoong
|6charactername=Park Ki-Ryoong (ep.8,16)
|7picture=File:On The Verge of Insanity-Jang Dae-Woong.jpg
|7name=Jang Dae-Woong (actor){{!}}Jang Dae-Woong
|7charactername=executive (ep.10)
|8picture=File:On The Verge of Insanity-Son Seon-Geun.jpg
|8name=Son Seon-Geun (1964){{!}}Son Seon-Geun
|8charactername=executive (ep.10)
|9picture=File:On The Verge of Insanity-Park Byung-Wook.jpg
|9name=Park Byung-Wook (1965){{!}}Park Byung-Wook
|9charactername=executive (ep.10)
}}

===Hanmyeong Electronics Others===
{{CastPictures5
|1picture=File:On The Verge Of Insanity-Song Yo-Seb.jpg
|1name=Song Yo-Seb
|1charactername=Jin Seung-Ho (ep.1)
|2picture=File:On The Verge Of Insanity-Choi Duk-Moon.jpg
|2name=Choi Duk-Moon
|2charactername=Kim Young-Soo
|3picture=File:On The Verge Of Insanity-Lee Sung-Il.jpg
|3name=Lee Sung-Il (1976){{!}}Lee Sung-Il
|3charactername=auditor (ep.8-9)
|4picture=File:On The Verge Of Insanity-Kwak Min-Suk.jpg
|4name=Kwak Min-Suk (1970){{!}}Kwak Min-Suk
|4charactername=Lee Hyun-Joong (ep.10)
|5picture=File:On The Verge Of Insanity-Jang Joon-Hyun.jpg
|5name=Jang Joon-Hyun (actor){{!}}Jang Joon-Hyun
|5charactername=Lee Kyung-Hoon (ep.12)
}}

===Hanmyeong E & C===
{{CastPictures2
|1picture=File:On The Verge Of Insanity-Park Keun Rok.jpg
|1name=Park Keun-Rok
|1charactername=Han Seung-Jin
|2picture=File:On The Verge Of Insanity-Kim Sang-Il.jpg
|2name=Kim Sang-Il (actor){{!}}Kim Sang-Il
|2charactername=Mr. Yoon (ep.15)
}}

===AA Electronics===
{{CastPictures1
|1picture=File:On The Verge Of Insanity-Kim Han-Joon.jpg
|1name=Kim Han-Joon (1982){{!}}Kim Han-Joon
|1charactername=Mr. Jung
}}

===QK Korea===
{{CastPictures1
|1picture=File:On The Verge Of Insanity-Kim Kyung-Min.jpg
|1name=Kim Kyung-Min (1975){{!}}Kim Kyung-Min
|1charactername=Shin Jong-Sik (ep.8)
}}

===GR Tech===
{{CastPictures2
|1picture=File:On The Verge Of Insanity-Kim Jae-Il.jpg
|1name=Kim Jae-Il (1982){{!}}Kim Jae-Il
|1charactername=Kang Jae-Hyuk (ep.16)
|2picture=File:On The Verge Of Insanity-Kim Pan-Kyum.jpg
|2name=Kim Pan-Kyum (1987){{!}}Kim Pan-Kyum
|2charactername=CEO's assistant (ep.16)
}}

===Choi Ban-Seok's Family===
{{CastPictures2
|1picture=File:On The Verge Of Insanity-Nam Neung-Mi.jpg
|1name=Nam Neung-Mi
|1charactername=Choi Ban-Seok's mother
|2picture=File:On The Verge Of Insanity-Jung Ye-Na.jpg
|2name=Jung Ye-Na (2012){{!}}Jung Ye-Na
|2charactername=Choi Sun-Yi
}}

===Dang Ja-Young's Family===
{{CastPictures2
|1picture=File:On The Verge Of Insanity-Chun Young-Hoon.jpg
|1name=Chun Young-Hoon (1961){{!}}Chun Young-Hoon
|1charactername=Dang Ja-Young's father
|2picture=File:On The Verge Of Insanity-Choi Yoon-Jung.jpg
|2name=Choi Yoon-Jung (1981){{!}}Choi Yoon-Jung
|2charactername=Dang Min-Young
}}

===Others===
{{CastPictures7-5
|1picture=File:On The Verge Of Insanity-Jeon Yeo-Jin.jpg
|1name=Jeon Yeo-Jin (1984){{!}}Jeon Yeo-Jin
|1charactername=headhunter (ep.3)
|2picture=File:On The Verge Of Insanity-Lee Jun-I.jpg
|2name=Lee Jun-I (1989){{!}}Lee Jun-I
|2charactername=gas station attendant (ep.10)
|3picture=File:On The Verge Of Insanity-Jung Doo-Kyum.jpg
|3name=Jung Doo-Kyum
|3charactername=mayor (ep.11)
|4picture=File:On The Verge Of Insanity-Kwon Hyuk-Soo.jpg
|4name=Kwon Hyuk-Soo (1954){{!}}Kwon Hyuk-Soo
|4charactername=Han Seung-Ki's uncle (ep.14)
|5picture=File:On The Verge Of Insanity-Jung Young-Do.jpg
|5name=Jung Young-Do (1986){{!}}Jung Young-Do
|5charactername=reporter (ep.14)
|6picture=File:On The Verge Of Insanity-Hwang Tae-Kwang.jpg
|6name=Hwang Tae-Kwang (1974){{!}}Hwang Tae-Kwang
|6charactername=Son Tae-Sung (ep.16)
|7picture=File:On The Verge Of Insanity-Uhm Hye-Soo.jpg
|7name=Uhm Hye-Soo (1994){{!}}Uhm Hye-Soo
|7charactername=Lee Han-Sol (ep.16)
}}
'''Additional Cast Members:'''
* [[Choi Myoung-Gil]] - Choi Hye-Soo
* [[Yoo Sang-Jae (1976)|Yoo Sang-Jae]] - Son Hyung-Ki (finance team)
* [[Chu Eun-Kyung (1981)|Chu Eun-Kyung]] - Jo Sun-Young (ep.1)
* [[Lee Chan-Yang (1991)|Lee Chan-Yang]] - employee (ep.4)

==Trailers==
{{AsianWikiPlayer3|url=2021A/On_The_Verge_Of_Insanity-e16.xml}}

==Episode Ratings==
{| border="1" cellpadding="4" cellspacing="0" style="margin: 1em 1em 1em 0; background: #F9F9F9; border: 1px #AAA solid; border-collapse: collapse; font-size: 95%; text-align:center"
! rowspan="2" bgcolor="F52887" | Date
! rowspan="2" bgcolor="F52887" | Episode
! colspan="2" bgcolor="F52887" | AGB
|-
! bgcolor="F52887" | Nationwide
! bgcolor="F52887" | Seoul
|-
|rowspan="2" style="vertical-align:middle;" | 2021-06-23
|rowspan="2" style="vertical-align:middle;" | 1
|| 3.0% || NR
|-
|| 3.9% || NR
|-
|rowspan="2" style="vertical-align:middle;" | 2021-06-24
|rowspan="2" style="vertical-align:middle;" | 2
|| 2.7% || NR
|-
|| 3.3% || 3.8% (20th)
|-
|rowspan="2" style="vertical-align:middle;" | 2021-06-30
|rowspan="2" style="vertical-align:middle;" | 3
|| 2.7% || NR
|-
|| 3.6% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-07-01
|rowspan="1" style="vertical-align:middle;" | 4
|| 3.0% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-07-07
|rowspan="1" style="vertical-align:middle;" | 5
|| 3.2% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-07-08
|rowspan="1" style="vertical-align:middle;" | 6
|| 3.0% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-07-14
|rowspan="1" style="vertical-align:middle;" | 7
|| 3.8% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-07-15
|rowspan="1" style="vertical-align:middle;" | 8
|| 2.7% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-07-21
|rowspan="1" style="vertical-align:middle;" | 9
|| 3.3% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-07-22
|rowspan="1" style="vertical-align:middle;" | 10
|| 3.3% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-08-11
|rowspan="1" style="vertical-align:middle;" | 11
|| 3.8% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-08-12
|rowspan="1" style="vertical-align:middle;" | 12
|| 3.7% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-08-18
|rowspan="1" style="vertical-align:middle;" | 13
|| 4.0% || 4.3% (18th)
|-
|rowspan="1" style="vertical-align:middle;" | 2021-08-19
|rowspan="1" style="vertical-align:middle;" | 14
|| 3.6% || NR
|-
|rowspan="1" style="vertical-align:middle;" | 2021-08-25
|rowspan="1" style="vertical-align:middle;" | 15
|| 3.5% || -
|-
|rowspan="1" style="vertical-align:middle;" | 2021-08-26
|rowspan="1" style="vertical-align:middle;" | 16
|| 4.3% (18th) || -
|-
|}

Source: [http://www.agbnielsen.co.kr/ AGB Nielson]

* NR denotes not ranked within the Top 20 TV programs (including news, sports, variety, etc.) for that day according to AGB Nielson.

==Awards==
* [[2021 MBC Drama Awards]] - December 30, 2021
** '''Excellent Actor''' ([[Lee Sang-Yeob]])

==Comments==
<wp:comments>
wp_post_title=On The Verge Of Insanity
wp_url=http://asianwiki.com/commentsdirectory/
</wp:comments>

{{UpdateBox}}

==External Links==
* [http://program.imbc.com/OnTheVergeOfInsanity Official Website]

[[Category:South Korean Drama Series]]
[[Category:2021 South Korean Drama Series]]
[[Category:Drama Series]]
[[Category:2021 Drama Series]]
[[Category:Unclassified Drama Series]]
[[Category:2021 Unclassified Drama Series]]
[[Category:K Unclassified Drama Series]]
[[Category:MBC Drama Series]]
[[Category:2021 MBC Drama Series]]

@@ Line 145: / Line 145: @@
 |4charactername=Bae Jung-Tak
 |5picture=File:On The Verge Of Insanity-Lim Il Gyu.jpg
-|5name=Lim Il-Gyu (1978){{!}}Lim Il-Gyu
+|5name=Ryu Sun-Gyu (1978){{!}}Ryu Sun-Gyu
 |5charactername=Oh Jae-Il
 }}

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 |5charactername=Sung Do-Gyun
 |6picture=File:On The Verge Of Insanity-Yoo Jung-Rae.jpg
-|6name=Yoo Jung-Rae
+|6name=Seo Eun-O (1988){{!}}Seo Eun-O
 |6charactername=Eo Hae-Mi
 |7picture=File:On The Verge Of Insanity-Kim Ye-Eun1.jpg

On The Verge Of Insanity - Revision history

RamenLover: Text replace - "name=Lim Il-Gyu (1978)|Lim Il-Gyu" to "name=Ryu Sun-Gyu (1978)|Ryu Sun-Gyu"

RamenLover: Text replace - "name=Yoo Jung-Rae" to "name=Seo Eun-O (1988)|Seo Eun-O"

RamenLover: /* Others */