Paris, France, December 1946. Jenny Lamour, an ambitious cabaret singer, and Maurice, her extremely jealous pianist husband, become involved in the thorough investigation of the murder of a shady businessman, led by Antoine, a peculiar and methodical police inspector.

Abdullah, absolute monarch of a wealthy Middle Eastern country, has everything a man could want. Everything, that is, until he falls for a beautiful model. She rejects his advances, however, along with his offers of riches and luxury, chosing instead an officer in the king's army as her lover. As all of this is going on, the ruler is oblivious to the growing discontent among his subjects, and the threat of revolt that is increasing with each passing day.

Reported missing in 1940, Jacques Ledru comes back to Strasbourg as Martin Schmidt. He tracks down his wife Genevieve, but she's remarried and has taken the head of his shipping company. She and her husband will do anything to get rid of Jacques and keep his company.

Between eleven o’clock and midnight one evening, a notorious trafficker Jérôme Vidauban is shot whilst walking in a tunnel in Paris. The case is assigned to Inspector Carrel, who is Vidauban’s perfect double. Using his resemblance to the arch criminal, Carrel manages to infiltrate in Vidauban’s circle of acquaintances and contacts. He becomes embroiled in a bizarre web of intrigue and discovers no shortage of possible murder suspects, all of whom appear to be surprised to see him still alive.