There's a lot to admire about this film (in a nasty, disturbing way), but it's nowhere near Daisuke Yamanouchi's best. It can be memorably horrible, but the ending sort of dribbles away with the evil men shut in a cupboard. That works, mind you. It's a "leave it to your imagination" kind of dark ending. You'll be wondering what'll happen to them in the near future. ("Short-term" is probably all they have. I'm expecting their medium-term futures to involve being cut into pieces and left out for garbage collection in multiple black plastic bags, unless of course their captor moves out of her apartment and leaves them to starve to death in that cupboard.)

Daisuke Yamanouchi's done better since, though. This was relatively early in his filmmaking career and he'd be doing more with the characters if he remade this film today.

The film's heroines are Rika (trapped in an abusive marriage) and Mariko (a yoga instructor who's already divorced her problem husband). Rika's life is horrific. The best I can say of her husband is that there isn't blood afterwards. He's into humiliation, beating, looks-like-rape in the kitchen right in front of his father (who's encased in bandages) and turning his wife into an immobile object on the kitchen floor, wearing only underwear and bound with duct tape. He puts down a dog bowl for her. The result of that is double rape after a burglar breaks in (although both rapists are oddly grateful and polite).

Oddly, we also see romantic flashbacks to the old days when Rika and her future husband were still lovey-dovey. I think it's for contrast.

As for Mariko, her ex-husband is capable of turning up out of the blue and doing something comparable to all the above.

This is strong as a study of men abusing women. It's less effective as a study of the women themselves. One is basically a victim throughout, while the other goes on a not-entirely-convincing "sex and vengeance" kick. I was surprised by some of her choices, sure, but I never understood what made her tick. We can assume she has a high libido, but ultimately she's opaque and more of a mystery than an actual character.

Incidentally, online sources call this an 84-minute film, but the last ten minutes of that are just trailers for other pink films.

This isn't a bad film at all. As a study of male power abuse, it's memorable, creepy and shocking. Seeing a pair of scissors in that kind of scene, for instance... ew no put them down. There's no gore, but there are still scenes that stand out even by Daisuke Yamanouchi's standards. The problem is that the girls are underwritten and not that interesting, although at least they get a lesbian happy ending. (Abusers being locked in a cupboard is part of that, obviously.) This is a horrible film, but at least it ends optimistically and you're being allowed to imagine the worst (if that's your preference).