Rosa la Rose is the most beautiful prostitute of Les Halles. Every client wants her and she accepts everything. Her pimp is a sympathetic and generous man and there is not much to tell about Rosa’s life. Until one day she meets Julien, a young guy, and falls in love with him. But will it be worthy to leave her life for a madness love?

Phillipe and Esther live an apparently idyllic life with their daughter, Elise. In an attempt to preserve this bliss, Phillipe decides that he and Esther should each have affairs, being sure to tell each other openly about them. The plan backfires with tragic results as Phillipe becomes engulfed in jealously.