An old vagrant accidentally meets a man who has just killed his wife. They are both housed with an old woman who lives in the nostalgia of a youthful love.

In Lourdes, in the 1860s, the young Bernadette disturbs despite herself the peaceful life of the small town. She is the only one to see the apparition of The Lady, every day. The villagers take sides, the notables try to stifle the affair. But crowds come from all over the country. Inspired by the true story of the Lourdes affair.

Superintendent Maigret is sent to Antibes to elucidate the murder of William Brown, a rich Australian who regularly disappeared to indulge in formidable drinking binges. In his footsteps, Maigret makes the rounds of bars until discovering the Liberty Bar, its welcoming patroness La Grosse Jaja and its equivocal clientele. It is without a doubt here that the key to the murder is to be found.

Sophie Dirondel, history teacher at the Saint-Cloison-sur-Ermoise, wins the jackpot of a lottery, a 2CV. The good-natured woman is both happy and slightly upset, as she doe not have her driving-license. But she decides to take driving lessons and although she does not prove very gifted she manages to pass the test. She grasps the opportunity to achieve one of her sweetest dreams and, proudly sitting behind her wheel, heads for the City of Light. Alone in Paris, she gets to know Victor Martini, a smooth operator. The man who, in real fact, is the leader of a gang, has no problem bamboozling the naive woman.

For fun and to dazzle his wife, the novelist Morgan steals a ring and gets rid of it in the costume jewelry section of a supermarket. Sophie buys the diamond, which forces the novelist to embark on crazy adventures to recover the jewel.

Georges, hunted by the Germans, had taken refuge with his brother, Commissioner PJ Paris. Once released, he teams up for the sake of a girl with the lackluster Zattore. A bank is robbed, but the police is fast and Georges will either lose his life.

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.

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 whatever the price to pay. When the Liberation comes Chabrier resumes his activities at the French National Police.

An Alsatian, head of a section of the Gestapo, is actually spying on behalf of the French and dismantling a Nazi network. His activities are brought to light by the Germans and he owes his life only to the intervention of a young woman.