Eiko has an unsatisfying marriage, and finds satisfaction in the arms of the younger Mitsuo. After a passionate spell between them, Eiko feels she can't keep living this way and breaks up with him. Two years later, Eiko’s younger sister, Yuiko is happily engaged to marry, and introduces her fiance to Eiko. The fiance is no other than Mitsuo. Mistuo and Eiko pretend to meet each other for the first time. Will they be able to keep living this lie? This romantic drama was shot beautifully by one of Japan's leading cinematographers, Shoji Shimizu.
Edna keeps her younger sister Millie drugged and chained to her bed. The drugs have made Millie a nymphomaniac who's endless supply of men that Edna providers her cannot satisfy her and seeing her sister unsatisfied gets Edna off. But Edna's main plan from all of this is to inherit her deceased parents' fortune which is supposed to all go to Millie on her 21st birthday, so if she can prove Millie insane she will get the fortune. But when one of the men appears to satisfy Millie, Millie discovers the outside world and the two will try to stop Edna's evil plans.
Via BaronBl00d at the IMDb: "...this film [is] about a woman who leaves her film career in Rome(no longer wanted) and comes to stay with her sister who married a millionaire. While there she devises a plan for her brother-in-law's brother and servant to have sex with her sister after being drugged with a an aphrodisiac in the hopes that her brother-in-law will divorce her sister and marry her. Whew! Some plot."