Cashier Maurice Legrand is married to the wretched Adele. By chance, he meets Lucienne, 'Lulu', and makes her his mistress. He thinks he has finally found love, but Lulu is a streetwalker, still in love with her pimp.

Michel Simonas Maurice Legrand
Janie Marèseas Lucienne 'Lulu' Pelletier
Georges Flamantas Andre 'Dédé' Govain
Magdeleine Bérubetas Adèle Legrand
Roger Gaillardas Adjutant Alexis Godard
Jean Gehretas Monsieur Dugodet
Max Dalbanas Bernard, the colleague
Theodor Sparkuhl