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Psychopath Diary

Title: 싸이코패스 다이어리 / Psychopath Diary
Genre: Thriller, Comedy
Episodes: 16 (To Be Confirmed)
Broadcast network: tvN
Broadcast period: 2019-Nov-20 to 2020-Jan-09
Air time: Wednesday & Thursday 21:30


This drama tell the story of Yook Dong Shik (Yoon Shi Yoon) who coincidentally witnesses a murder and picks up the killer’s diary. While fleeing the scene, he gets into a car accident causes him to lose his memory. Due to the diary in his possession, he mistakenly believes that he is a psychopathic serial killer.


Main Cast

Yoon Shi Yoon as Yook Dong Shik
Jung In Sun as Shim Bo Kyung
Park Sung Hoon as Seo In Woo

People around Dong Shik

Lee Han Wie as Yook Jong Chul (Dong Shik’s father)
Hwang Geum Byul as Yook Ji Yun (Dong Shik’s older sister)
Kim Kyul as Jo Yong Koo (Dong Shik’s brother-in-law)
Jung Soo Bin as Yook Dong Chan (Dong Shik’s half-brother)
So Hee Jung as Na In Hye (Dong Shik’s step-mother, Dong Chan’s mother)

People around Bo Kyung

Choi Sung Won as Heo Taek Soo
Kim Myung Soo as Shim Suk Koo (Bo Kyung’s father)
Lee Kan Hee as Lee Sook Yun (Bo Kyung’s mother)
Lee Hae Young as Officer Ryoo Jae Joon

People around In Woo

Park Jung Hak as Seo Choong Hyun (In Woo’s father)
Yoo Bi as Seo Ji Hoon
Yoon Ye Hee as Kim Eun Shil
Kim Hye Na as Seo Ji Eun
Im Il Kyu as Kim Chan Il
Hwang Sun Hee as Jo Ji Eun
Han Soo Hyun as Kim Moo Suk

People at Daehan Securities

Choi Dae Chul as Dong Chan Suk
Kim Ki Doo as Park Jae Ho
Jo Shi Nae (조시내) as Han Jung Ah
Choi Tae Hwan as Shin Suk Hyun
Lee Min Ji as Oh Mi Joo
Heo Sung Tae as Jang Chil Sung

Production Credits

Production Companies: Studio Dragon, KeyEast
Director: Lee Jong Jae
Screenwriters: Ryu Yong Jae, Kim Hwan Chae, Choi Sung Joon

Episode Ratings

Date Episode AGB TNmS
2019-11-20 1 1.766 -
2019-11-21 2 1.463 -
2019-11-27 3 1.928 -
2019-11-28 4 2.206 -
2019-12-04 5 2.368 -
2019-12-05 6 2.212 -
2019-12-11 7    
2019-12-12 8    
2019-12-18 9    
2019-12-19 10    
2019-12-25 11    
2019-12-26 12    
2020-01-01 13    
2020-01-02 14    
2020-01-08 15    
2020-01-09 16    

Sources: TNmS Media Korea & AGB Nielsen Korea (Nationwide)

*** Note: This drama is aired on Pay-TV channel which has fewer viewers than Free-TV channels. So, please don’t be surprised with the low rating. ***


Related Photo

(Other Photo from Official Site)

Official Site

Official Poster

Official Trailer
Trailer I
Trailer II
Trailer III (15s)
Trailer III (45s)
Trailer IV (15s)
Trailer IV (40s)
Trailer V
Trailer VI
Trailer VII

Watch Online in Viki.com


  1. 1 : Annisa Rahmah Ayuningtyas Anggraeni Says:

    can’t wait for this series….

  2. 2 : Piet Noorch Says:

    will be interesting

  3. 3 : Dawn Says:

    I read the description and I’m already laughing. Should be funny. 😅😅

  4. 4 : blessing Says:

    I t is a nyc drama, they just started.

  5. 5 : Ling Says:

    Jung in sun – why does she look like kyung soo jin?

  6. 6 : Piet Says:

    Daebak…… can’t wait next week…. next episode.
    Good Job Screenwriters: Ryu Yong Jae, Kim Hwan Chae, Choi Sung Joon

  7. 7 : SUFIE HUDIN BIN JOH Says:

    Damn turn out he is an scape goat

  8. 8 : Ling Says:

    Rather interesting drama about how an altered self perception influences and changes one’s motivations

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