The body of a young woman falls on the terrace of Martha, who intrigued, meets her neighbor. In contact with this strange man, she learns to have a different look about her own life and her marital problems.

The film is a road movie that follows a middle aged man who gives a young woman a lift. On the car radio, news bulletins warn the population against a recently escaped sadist who is known to prey on young women and children. Lelouch often cuts away from the main story, if only briefly, to parallel events that are not necessarily crucial to the story but illustrate what is suggested by the radio.