The aunt of Alfred Puc, a meek tax-collector in Paris, dies while riding in a moving van. The driver, not wishing to be bothered by a police interrogation, hides her corpse in a cupboard before notifying Alfred. But the van is stolen. Alfred, being the heir of a rich lady, begins a frantic search...
The exploits of Chief Police Inspector Chabrier, first before the invasion of France in May 1940 as he fights against spies preparing the coming the Germans, particularly Emmy de Welder, the alleged manager of the Rouen hospital. Later, Chabrier and his men go underground and resist the occupiers...
In Central Europe, resistance to the Germans in growing. But the partisan leader is denounced and killed. His daughter and the son of the traitor love each other. Condemned by his comrades, the informer commits suicide in front of the young couple.
On the morning of January 30, 1889, the Archduke Rodolphe de Habsbourg and his mistress Marie Vetsera were found dead. The remains of Rodolphe are discreetly repatriated to Hofburg, while that of Mary is hastily thrown into the depths of a tomb.
An untiring lady social worker, Émilienne, has as one of her charges a stableman who was wounded by his mistress. Unfortunately, Émilienne's young sister who was helping her at work decides to go away with the stableman.
After the discovery of two murders, Commissioner Chabrier, of the French secret services, is investigating the disappearance of plans affecting the national defense of the country robbed by a gang of international spies.
While Ludovic Dubois, a young summer camp monitor in Saint-Benoît, entertains the children by playing Robin Hood, the lord's niece is kidnapped by her uncle, in the castle next door. Helped by the children and the customs inspector, the last of the Robin Hoods will free the "Princess Isabelle",...