Onanie Master Kurosawa, Bastard Recommendations
The same exact psychological and drama feel as onanie master but totally different theme. Kurosawa has a pervy aspect to it while Bastard has a horror theme and vibe. (and no the protagonist does not masturbate to fix his problems) Both have unexpected twists and turns. Both are shocking and both tell completely unique stories that are unlike any other. I cannot say much about bastard because it would spoil the story. Though one thing is for sure, I can't see someone not enjoying bastard if they enjoyed onanie master.