Paris, 1937. Winckler kills his enemy Gordon, a Chicago mobster, from the stage of a Parisian music hall, where he performs telepathy. He pays another artist, Helene, so that she tells the police they've spent the night together, which doesn't fool Callas, the police officer who investigates the murder. He hires one of his fellow officers in order to seduce Helene.
La neige était sale is based on a novel and play by the phenomenally prolific Georges Simenon. Upon learning that his mother was a prostitute, Frank (Daniel Gelin) dejectedly vows that he, too, will live a life of debauchery. Part of his self-degradation program is to kill someone, and since the story takes place during the Nazi occupation of France, he chooses a German officer as his victim. His steady descent into psychosis and depravity becomes his ultimate undoing.
The novelist Suzanne Delmont creates a character, "The Uncatcable Frédéric", a sort of Arsène Lupin. A mysterious stranger launches a press campaign accusing him of having a harmful influence on young people...
