Francoise (Annie Giradot), a famous French actress, is in America working on a film when she meets Henri (Jean-Paul Belmondo), a composer who is recording the film’s soundtrack. Although both are married, they find themselves gradually drawn to each other, eventually falling into a relationship. In a rented convertible they drive to Las Vegas and the Southwest, and then fly to New Orleans to listen to jazz in a nightclub. In a moment of conscience, Francoise calls her husband and confesses all. This spells the end of their romance and the two lovers decide to go their separate ways. However, later, Henri calls Francoise from New York, and the two make an appointment to rendezvous in Nice.
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