If you loved Female Prisoner: Caged!, try Wife's Sexual Fantasy: Before Husband's Eyes
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
You already loved

Female Prisoner: Caged!
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Wife's Sexual Fantasy: Before Husband's Eyes
What they share
Both films are directed by Masaru Konuma, and they both carry the raw mood tag, and they sit in Crime / Drama territory. If that's the register that drew you to Female Prisoner: Caged!, the second film will land in a comparable space — through a different lens.
raw
What Wife's Sexual Fantasy: Before Husband's Eyes is
You're a businessman in Tokyo, enjoying a bath after an encounter. But the room turns to blackmail, and your secrets become a public game. His camera finds its subject. Konuma's thriller simmers with the era's anxieties.