Delphine has two sides in her life. During the time she is a devoted activist volunteered to exchange letters with prisoners. In the night she attends ‘sex lessons’ performed by Prof. Christophe. One day, Frank, one of the inmates she replaced letters, is released. He begins residing with her and her roomie Angella. Christophe seems uneasy about it.
In order to preserve her relationship with Romain, Aurélie is convinced that she must make him forget his previous conquests. She proposes to stage every erotic experience he has lived with his former girlfriends and to throw away the corresponding picture from his photo's album if she does better than the ex-girlfriend ...
Marianne tells Paul that she is leaving him for Mathieu. Then, Mathieu's wife comes to see Paul and ask to help her to take revenge of the infidels. For that, she says they have to simulate to be in love to each other. Paul agrees to play the game ...
