Terry (Steve Guttenberg) asks his boss's wife Sylvia (Isabelle Huppert) to his apartment after an office party and the two go to bed. Later, while he is in the bathroom, she hears screams outside and goes naked to the window. Seeing a man attacking a young woman, she opens the window and the assailant runs away. When the media report the murder of a young woman near Terry's flat that night, he thinks the police should know what Sylvia saw but, to protect her, claims he was at the bedroom window.