Also known as Lilac, this early Anatole Litvak-directed talkie was based on a play by Tristan Bernard and Charles Henry Hirsch. The story bears traces of the Bertold Brecht-Weill piece The Threepenny Opera, with heroine Lilac (Marcelle Romeo) consorting with the criminal scum of Paris. Lilac falls in love with a handsome detective (Andre Luguet), but he doesn't let his emotions stand in the way of his duty, and in the end he reluctantly turns her over to the authorities. At $120,000, Coeur de Lilas was one of the most expensive movies to come out of France in 1931, but it more than made back its cost at the box-office.

Towards the end of the 19th century, the Duke of Gerolstein traveled to Paris. Sixteen years earlier he had a daughter who was taken from him by her mother who was chased out of the palace. After many dramatic adventures, the Duke finds his daughter in the person of Fleur de Marie, martyred throughout her childhood by the Owl and the schoolmaster.