Simon and Babeth are seemingly happy couple, but she is not very interested in sex, while he is the opposite. He has sex with his secretary, his older downstairs neighbor, and friend Victoria, as well as other mistresses. But Babeth becomes suspicious and follows him to a hotel where he books a room to make love to one of his mistresses.

Elodie leaves her husband Laurent when she discovers he has a mistress. She gets drunk in a bar and shares a bottle with a wino in the street. they have sex over the top of some trash cans. She then goes to her sister's place and interrupts her in bed with her boyfriend, Christophe. They go off to stay with their father in the country. He has a very obliging maid, Hélène, and a shy young man, Guillaume, is staying with him. Guillaume becomes infatuated with Elodie.