During the cold and rainy off-season a man arrives in a seaside town and, giving his name only as Pierre, checks into the only hotel which remains open. His arrival arouses curiosity and a degree of suspicion, as people note that he appears to know the area, yet gives no explanation for his presence at that bleak time of year in the dead-end town.
Bob Letellier, a good looking rich kid who studies science, makes the acquaintance of Alain, a cynical and immoral young man. The latter introduces him to the existentialist circles of Saint-Germain-des-Prés. Bob is invited to a party and becomes Clo's lover, a rich heiress.
When his wife leaves him, a young French actor, François Combe, moves to New York to work for a television company. One evening, he meets an attractive young woman, Kay Larsi, in a bar.
