Rapist with Handcuffs: Defile! 1990 streaming

Framed as a mystery in which a detective is hired to locate a model's rapist, every element of the film, from its alienated characters and artificial settings to its gratuitous sexual cruelty and cynical twist ending, mark it as just another of the hundreds of perverse Japanese attempts to sexualize the Italian gialli of the 1970s into even more Sadean exploitation than their models.