Tim, a young sportsman, goes to visit his aunt and his two nieces, Gaelle and Malou, in their villa on the countryside for the summer holidays. He is fascinated by Virginie, a nymphomaniac who stays with some friends nearby, but is repulsed because she is having sex with every man in sight. Tim has affairs with the girl at the local shop, a friend, a neighboring lonely girl. The nieces try to seduce him, but he is not interested in them. At a bal masquée, he meets a transvestite, leaves. Masked, he goes to rape Virginie at knife-point (only for fun!).