As Garibaldi’s troops begin the unification of Italy in the 1860s, an aristocratic Sicilian family grudgingly adapts to the sweeping social changes undermining their way of life. Proud but pragmatic Prince Don Fabrizio Salina allows his war hero nephew, Tancredi, to marry Angelica, the beautiful daughter of gauche, bourgeois Don Calogero, in order to maintain the family’s accustomed level of comfort and political clout.

Beautiful young housewife Séverine Serizy cannot reconcile her masochistic fantasies with her everyday life alongside dutiful husband Pierre. When her lovestruck friend Henri mentions a secretive high-class brothel run by Madame Anais, Séverine begins to work there during the day under the name Belle de Jour. But when one of her clients grows possessive, she must try to go back to her normal life.