Edwige Feuillère and Pierre Richard-Willm star in director Jacques de Baroncelli's adaptation of the Balzac novella The Duchesse de Langeais, which tells the tale of a Parisian socialite who is romantically pursued by a Napoleonic war hero. With a screenplay by Jean Giraudoux.
Catherine's technique to sell her clocks is to blackmail illegitimate couples such as Jacques and Gisèle. However when Gisèle's husband Pierre walks in on them, Catherine pretends to be Jacques's lover to save the day. Jacques then gets caught up in her schemes when the next couple she deals with turn out to be jewel thieves who kidnap them.
