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.

Although David got many diploma, he doesn't have a good job. Pushed by his girl friend Aurore, he starts looking for a new job, because as the time goes, she is fed up to have maney's problem and the end of every month. One day, David is going to a photo shop those female manager being looking for a new assistant.