Once Is Enough(1946)

Original title: Il suffit d'une fois

Christine Jourdan is a highly rated sculptor who, to oust her impresario Ancelin, invented a lover named Nicolas. Soon she marries Jacques, but he proves to be jealous of the supposed lover. The newspapers publishing the death of a Nicolas, Christine takes the opportunity to announce the death of her lover. But the man in question was murdered by a woman. Jacques and Ancelin suspect Christine and indulge in the worst eccentricities.