The detectives of the Paris Judicial Police, based at the Quai des Orfèvres, are mobilized by four criminal cases. A double murder, perpetrated in a hotel on the Place de Clichy, intrigues the investigators. The owner and a little maid were murdered in cold blood.

A fraudulent builder has planned to spend a few of days in Switzerland to hide his hoard in a swiss bank at once. Unfortunately an inspector of the Internal Revenue department is going to come and go over the firm's books.

Two monks come to a small village to lead a simple life but their first act of charity is to try and seduce one of the village women.

Edmund Dantes is falsely accused by those jealous of his good fortune, and is sentenced to spend the rest of his life in the notorious island prison, Chateau d'If. While imprisoned, he meets the Abbe Faria, a fellow prisoner whom everyone believes to be mad. The Abbe tells Edmund of a fantastic treasure hidden away on a tiny island, that only he knows the location of. After many years in prison, the old Abbe dies, and Edmund escapes disguised as the dead body. Now free, Edmund must find the treasure the Abbe told him of, so he can use the new-found wealth to exact revenge on those who have wronged him.

A young woman wins a typing contest and sets off to work in Paris.

Rich industrialist Jacques Decret learns his wife Gloria is having an affair with a young actor. For revenge, he bombards her with anonymous letters, convincing her that her lover is the culprit while Gloria desperately seeks a way out.

Hélène and Aldo Giovanni are a circus trapeze double act and a couple. Aldo is temporarily replaced by former-partner Alexandre when the former is injured. The two get into a fight and the following day Alexandre is discovered dead. Hélène suspects her husband is responsible for the murder.