American housewife Cathy Palmer loses her memory on a trip to Paris after being hit by a car. She wakes up in the hospital believing she's the fictional international spy, Rebecca Ryan.
A crook on the run hooks up with a criminal gang to commit a kidnapping. However, things don't go quite as planned.
Traumatized by the War of Algeria and by the accidental death of his wife and his son, Manu left the right road. His last caper was the attack of the Antwerp-Tangiers Express, carrying a precious cargo of industrial diamonds. But the whole affair was bungled and all of his accomplices got shot. The only survivor of this disaster, Manu now finds refuge in the mountain house of Lucia, the widow of a smuggler who lives alone there with her little boy.
After serving together in the French Foreign Legion, a mercenary and a doctor leave the service and go their separate ways. Later, they are reunited and become involved with a caper involving millions in a high-security safe. The two men become locked in during a holiday weekend as they attempt to crack the safe's combination.
In Barcelona, secret agent Antoine Donadieu thwarts the plans of a Nazi scientist.
The story of the Three Musketeers, D'Artagnan, and the imprisonment in an iron mask of the identical twin of the King of France, Louis XIV.
Two French journalists become embroiled in a criminal plot in New York City involving a disappeared United Nations diplomat.
Industrialist Pierre Verdier kills his mistress Jeanne Ancelin by throwing her off a train. Her husband, Ancelin, decides to take revenge on his wife's murderer, who has been acquitted by justice.
The Secret Service abducts a "rocket scientist" to better protect him against gangsters acting for Chinese agents.
Henri La Tour, a strolling player, is also a daring adventurer. So, when, after accomplishing a brilliant feat, he is awarded a title by King Louis XV, the Duke of Saint-Sever takes offense at it and challenges Henri to a duel. However, while they fight, a group of Austrian soldiers appear suddenly and the two rivals instantly unite to repel their enemies. Unfortunately, Saint-Sever is mortally wounded and, feeling he is about to die, he entreats his new friend to offer protection to Toinon, his natural daughter, whose life is being threatened...
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 schoolboy remembers his last holiday in the big house of his family in the country, before it was sold.
In France during World War I, Marthe waits for her husband, Jacques, while he fights on the front lines. Marthe then begins a tempestuous affair with 17-year-old François, with whom she had a dalliance before marrying Jacques. Jealous François struggles with the fact that Marthe is married, while she tries to prove her devotion to her young, hotheaded lover. Things become even more complex when Marthe becomes pregnant with Jacques' baby.