Psychopath Diary
2019 to 2020 Action & Adventure, Comedy, Crime 1 season
TMDB rating 7.2/10 Ended
The story of a man named Yook Dong-sik 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.
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Yook Dong Sik works at a brokerage company. He is a pushover and a fool too naïve and kind-hearted for his own good. Dong Sik is at a point in his life where enough is enough and goes to end his life. However, the place he chose to end it all was a place where a murder was about to happen. As he flees in fear, he gets into an accident, and the following day, doesn’t remember a thing in his past. The only clue he has about himself is a red diary he unknowingly took. The journal contains details of all heinous killings of a psychopathic serial killer. Being an innate fool, he mistakenly begins to believe that he is a psychopathic serial killer, and the world he once knew changes drastically.
All episodes available
TMDB rating 8.0/10
Cast and details
Yoon Shi-yoonYook Dong Shik
Jung In-sunShim Bo Kyung
Park Sung-hoonSeo In Woo
Lee Han-wiYook Jong Chul
Hwang Hyo-eunYook Ji Yeon
Lee Min-jiOh Mi-Joo
Choi Tae-hwanShin Seok-hyeon
Han Soo-hyunKim Mu Seok
Oh Chae-eun[Seo Ji-hoon's secretary]
Jeon Soo-yeonNurse (Eps 8, 9)
- Created by
- Kim Hwan-chae, Ryoo Yong-Jae
- Network
- tvN
- First aired
- Nov 20, 2019
- Latest episode
- Jan 9, 2020
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Release dates are original schedules and may differ from availability in your country. A release never marks anything as watched. Last checked Nov 3, 2026.Schedule data from TVmaze, CC BY-SA.