Midarana nikutai: Seikan jigoku (1985)
Original title: みだらな肉体 性感地獄
Midarana nikutai: Seikan jigoku is a 1985 Japanese-language drama movie directed by Hitoshi Ishikawa, with a running time of 1h 2m. It stars Kissei Kumamoto, Yumi Matsuda and Masayoshi Nogami.
Yakumaru is researching an aphrodisiac to cure his impotence. He happens to meet Mitsuko, who also has an impotent husband, and Yakumaru gives Mitsuko the medicine he is researching. The next day, the two meet again to hear the results, but Mitsuko seems strange. Mitsuko, who was frustrated that her husband did not cooperate and did not take her medicine, ended up taking the medicine herself.