Rusted Body (1987)
Original title: 拷問貴婦人
Rusted Body is a 1987 Japanese-language science fiction movie directed by Kazuo Komizu, with a running time of 1h 10m. It stars Keiko Asano, Saeko Kizuki and Ayu Kiyokawa.
A sexually insatiable woman leads a strange clan consisting of a sadistically unhinged woman, her oversexed boyfriend and a former army general. They have captured a businessman who has diverted company assets and work him over with torture and kinky sex to make him reveal the account number. Will he keep mum or will the clan get their way?