A menage-a-trois between a married couple and a lesbian provides the fun in this French sex comedy. The story is set in residential Avignon where housewife Loli lives with her husband Laurent, a realtor, and their two sons. Loli is a little frustrated because her husband is seldom home. While claiming to be at work, Laurent is frequently philandering with an assortment of young women. He rationalizes his behavior believing that it is only cheating if he gets caught. Loli has no idea that her husband misbehaves. She loves him. Her life changes when Marijo's car breaks down in front of Loli's house. Friendly Loli lets her in. Marijo becomes a permanent guest. The relationship is innocent until Laurent begins to suspect that the blatantly lesbian Marijo is trysting with Loli. It is not true, but after Laurent throws a fit and lets his own secret slip, Loli and Marijo do indeed begin a passionate affair. Laurent continues to live there. Many conflicts ensue between the married couple resulting in a confrontation between Laurent and Marijo. At this point, the story takes a surprising tack.