The dramatic failure of a couple, Véronique and Gilles, who can't solve their everyday problems. On the verge of breaking up, they're reunited at the last minute.

The psychotic son of a film producer becomes obsessed with a beautiful blonde starlet while in Cannes, lures her to his hotel room and strangles her. His mother finds out, but can she keep her mouth shut to protect her son? Meanwhile, the young killer meets another pretty blonde...