Yusuke Mikuni, a department manager at his company, buys a one-room apartment to have some space to himself. He signs an agreement with a young woman named Chako and has an affair with her once a week at the apartment.
Inspired by Arthur Schnitzler's novel, "La Ronde", many people are having sex in a variety of ways. A girl and her boyfriend go to a pool bar where she is served a free cocktail drink courtesy of a man who wants to date her. Another guy challenges her boyfriend to a game with the girlfriend being the prize. Three men are fighting over the young woman and a winner takes the girl. It ends up as four guys and the woman in a hotel room.
Keigo, whose mistress is Michiko, 22, is unhappy with meetings three days a week and eventually brings Michiko to his home. The desire for betrayal that was sleeping in his wife Satomi finally exploded due to her husband's abnormality, burst out like a dam, and finally turned into a "double marriage" strategy, far beyond her husband's infidelity...
A married couple, Fumio Asakura and Kumiko, enjoyed having pleasure in each other by taking pictures during sex. Kumiko met her old friend from school, Fuko because her husband went on a business trip for three days. They go to a disco in Tachikawa and are almost attacked by three young Japanese. Fuko calls on a black man named Bill, who lives close to Kumiko...
