Dan Oniroku hebi no ana (1983)

Ecstasy and violence are par for the course in the scandalous Japanese smut film Dan Oniroku hebi no ana (1983). Although it’s already more than two decades old, there’s nothing antiquated about Katsuhiko Fujii’s riveting erotic thriller, which treats its heroine to a wide range of imaginative pleasures and cruelties. Izumi Shima stars as Shiuko, the impeccably toned heroine whose adventures include bondage, boffing, murder, and mayhem.