Psychopath Diary
Psychopath Diary streams in the US free with ads on The Roku Channel, Rakuten Viki, OnDemandKorea, Tubi TV and 1 more app, as of October 5, 2026.
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.
Where to watch
9 apps, one package.
This title is not on an app included with Spectrum, but Spectrum Stream TV Signature includes HBO Max, the Disney+ and Hulu bundle, Peacock, Paramount+ and more. Spectrum Internet is required and sold separately.
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The Roku Channel
Rakuten Viki
OnDemandKorea
Tubi TV
Amasian TV
