A man is shot In the hotel of an imaginary South American country. Clarence and Montès, two inspector students, must solve this murder, but they don't know that dead guy is the USA public enemy No.1.

A person who had usurped the identity of a famous writer of detective stories was killed in the train. Why and by whom?

A bungling thief is threatened by one target with blackmail, unless the thief will kill his own cousin, a wealthy eccentric who is considered the village idiot.

A Corsican fisherman is the victim of a vendetta, when he was wrong to date the niece of a businessman proposing to create a seaside resort, much to the anger of the islanders.

A gangster, arrested by the police, manages to escape during his transfer to Paris. He takes refuge in the suburbs where his accomplices and his mistress await him.

A group of Nazis and sympathizers board a submarine bound for South America in the hopes of finding shelter.

Russia, 1835. Lieutenant Hermann, a compulsive gambler, is fascinated by an infallible martingale held by Countess Tomski, nicknamed The Queen of Spades. The day Hermann wants to wring the secret from her, the countess dies of fear. Following this tragic scene, Hermann sinks into dementia. Luckily, Lisa, his frail lover, brings him back to life and happiness.

A British officer poses as a traitor in order to infiltrate a team of terrorists who are sabotaging ships, while a seductive cabaret dancer is working for the mysterious genius who runs the enemy spy ring.

A young man comes back to his hometown to be confronted with a bourgeois obnoxious family who has always despised his -now dead - parents because they were music hall artists, "entertainers". But because he's the sole legatee of an uncle's fortune, his relatives become friendly with him.. at least for a while.