Plot Summary:Hélène, an antique dealer and her husband Georges, a respected doctor, live in a beautiful property and gives everyone the image of conjugal happiness. The children, Daniel and Nadine, are busy with their studies and their loves. The bourgeois life of Hélène is troubled by the murder of her lover, Philippe, a friend of his son. She finds the body when she goes to one of their appointments. In shock, she still thinks to take away the address book of the victim where her name appears - object compromising for her marriage. The police are interested in her. A stranger makes her sing. She is caught in a gear that she can not get out of. She suspects then it is a revenge of her husband.