An opinionated and cocky bookkeeper is certain he can rum his employer's business better than his employer can. The latter dive the bookkeeper a chance to demonstrate his management ability and skills, and promptly makes an unmitigated mess.

Two police inspectors track down a mysterious criminal who signs his crimes with a fiery triangle. When they have just discovered an accomplice, one of the police officers, in love with the young girl, is shot dead. His colleague will then have only one goal in mind.

The mysterious vigilante Milton has warned Scotland-Yard of his intention to kill the lawyer Maurice Meister who is the cause of his sister's suicide. Police and detectives watch over the lawyer's home, but on the day and at the appointed time Meister is murdered.

Out of love for his adoptive mother, Carl Brenner allows himself to be accused and imprisoned because of an illegal operation carried out by Doctor Stefan Brenner, the legitimate son of Mrs. Brenner. A few years later, Stefan died of alcoholism and Carl made a name for himself under his name.

Démonio the fakir has impressed a rich but weak-willed young man who hires him as an energy teacher. Demonio drags out the businesses of the shy lover, but his partner arranges everything and the finally satisfied lover endows the two accomplices who renounce fakirism.

Jacques de Nisson, a rich man, has a new mistress, Lucie Cavelier. Which does not prevent him from courting Florence, the wife of his lawyer friend Forestier. One day, Jacques is found murdered and chief-inspector Candély is sent on the spot to investigate. Jean, the victim's butler, Lucie as well as Florence are suspected in turns but the real murderer is finally identified thanks to his fingerprints.

A young woman flees with her lover, after having killed her brutal husband; hoping to live a few hours of happiness, before his arrest...

Through the fault of the Leech, Bibi la Puree and her friend Bob find themselves involved in a crime. The judge in charge of the investigation discovers in Bob a relative. He does not send them to prison and welcomes them to his property.

Ginette is always squabbling with her mother and she cannot take it any more. One day, she asks Jim Ashbury to intervene and this is how the son of a wealthy lord gets involved in the life of a pretty Jane Doe. Charmed by Ginette, Jim invites her to a cruise on the Mediterranean. It does not take long before Cupid sends his arrows at the two young people but things are not so simple for all that. Jim indeed fears Ginette might want to marry him for money, which is totally wrong. Fortunately, Lord Ashbury manages to persuade his stubborn son of his error.