2026
12 eps
tvN
Thriller Comedy Crime
A cash-strapped landlord buried in debt agrees to a 'fake kidnapping' scheme targeting a wealthy real-estate investor — not realizing the target plays a very di…
Like Psychopath Diary, it leans hard into dark comedy. The pacing is tense enough to make you watch through your fingers.
2025
12 eps
tvN
Crime Comedy Drama
After a legendary con artist is released from prison, he discovers his estranged daughter has built her own criminal enterprise — one that threatens to eclipse …
If you loved Psychopath Diary's relentless game of predator and prey where the tables keep turning, Knock Off delivers exactly that. The pacing is tense enough to make you watch through your fingers.
2021
12 eps
JTBC
Thriller Crime Comedy
A former detective who drinks and slacks off matches wits against a brilliant serial killer disguised as a college student.…
Inspector Koo scratches the same itch as Psychopath Diary — different world, same emotional frequency.
2023
12 eps
ENA
Comedy Thriller Drama
A recently fired, deeply unlucky middle-aged man decides to kidnap the daughter of a wealthy family for ransom — and discovers, about fifteen minutes into the k…
The Kidnapping Day scratches the same itch as Psychopath Diary — different world, same emotional frequency.
2023
10 eps
Disney+
Crime Thriller Mystery
A former genius detective, now a reclusive puzzle constructor, is pulled back into an active case when a series of murders with perfectly crafted puzzles left a…
If you loved Psychopath Diary's relentless game of predator and prey where the tables keep turning, Nine Puzzles delivers exactly that. At its core, it's about questions of who you really are under the person you've been told to be. The pacing is tense enough to make you watch through your fingers.