Bernard (Gérard Depardieu) is a fulfilled man. He is rich, has two beautiful children, and, above all, he is married to Florence (Carole Bouquet), an irreproachable woman, of perfect beauty. How to understand when he feels irresistibly attracted to his new secretary, Colette (Josianne Balasko), a "nice" but most ordinary girl? A crazy affair will however begin between them, at the risk of losing everything.