Realizing that her lover (Jean) is losing interest in her, a society lady
(Helene) gets revenge by tricking him into marrying a former prostitute
(Agnes). After the wedding Helene tells a stunned Jean about his wife's
secret past, but the ending has more than one surprise twist. This is a
modernized but fairly faithful adaptation of the story of Madame de La
Pommeraye from Denis Diderot's novel Jacques le Fataliste.