Larsen and Marina, a shady couple of motorists on the Côte d'Azur, pick up a man named Morlaix. A police roadblock, which he escapes by hiding in the back of the car, reveals the identity of their passenger.
Richard killed his wife out of jealousy, but was acquitted. During the vacations, he meets a young girl and decides to start a new life with her. Knowing Richard's past, his father warns them of the risks involved, and once again blinded by jealousy, he tries to kill his wife. He is then shot dead...
