Pierre is in Hamburg on a merchant ship with his friends Georges and Jean-Marie. While they are just looking for a good time in the twenty-four hours they have to waste in the city, Pierre is seized by the memory of a young German girl, Maria, whom he had known and probably loved when he was a prisoner of war in the bombed-out port of Hamburg. He abandons his companions in search of her, but is unable to trace her, her house having been destroyed and the search services having no record of her.

Millionaire Victor Danemore, living on the French Riviera, dies suddenly of a heart attack. His secretary, Dave Bishop, wants to know more about his employer's life. Surprisingly, not even his young wife knows anything about her husband's background or how he earned his fortune. Clues lead Bishop to Vienna and Stockholm, where he learns that Danemore was blackmailing people who cooperated with the Nazis during World War II.

The Bontemps family, like all the inhabitants of the village of Coussy la Chapelle, are passionate about radio. Coco, the fiancé of Jacqueline Bontemps, participates in all the contests and under the name of Mr. Bontemps wins a beautiful Sunday. All arrive in Paris and in the premises of the Parisian Post Office attend popular broadcasts.

A police inspector tries to capture international robbers who are actually also police.

Naive and good-hearted Léon Ménard arrives in Paris, determined to find work in the capital. In a café, he meets Bob, a seedy guy, who helps him to get a job. On cloud nine, the ingenuous young man, does is unaware of how Bob manipulates him. Having become the night concierge of a hotel, the thankful Léon lets Bob and his accomplices get into the pace. Jewels are stolen as a result.When he is accused, Leon refuses to incriminate his "friend". Fortunately, Charlotte, Léon's fiancé, manages to find evidence of Bob's guilt and thanks to a premium paid by the diamond dealer the two lovebirds can buy a grocer's shop and tie the knot.

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 to locate the missing van and the cupboard because one can't claim an inheritance if there is no 'corpus delecti.' In his search, he gets caught up in an underworld web and finds the body of a murdered gangster in his room. He finally locates the cupboard but promptly loses it again. But, wait, it isn't "finis' time, yet.

Christine, the daughter of a rich American, acquires from her father the jazz band of Ray Ventura who will be made responsible for accompanying her from morning till evening wherever she goes. From an endless number of amusing situations, the fiancée of the girl despairs. But soon the musicians rebel in in the face of the requirements of their patroness. More than a job, it is for them misery. Christine excuses them and she goes back to America with her band. Things go bad, degenerate, but the kindness of the musicians and the firmness of the fiancée of Christine really quiet down the moods of the young woman .

Angelo, a glass-blower from Murano, and Georgia Maglia, the pretty daughter of a fallen fascist magistrate, are chosen to be the stand-ins for the stars of a film version of "Romeo and Juliet" being shot on location in Venice and Verona. It is not long before they fall in love and their romance parallels that of Shakespeare's timeless heroes. Indeed their union is threatened by the schemings of Raffaele, the Maglia family's dubious tout...

1944, France experiences its last days of German occupation. A microcosm representative of the various attitudes adopted during this troubled period, some heroic, others less brilliant, the Grégeois family, scattered by the war, will strengthen its ties according to the Allied advance on the territory and the liberation of Paris, with its joys but also its sorrows, because not all of its members will survive the relative chaos that will characterize this end of the world war.

Mathilde Stangerson just married her fiance, when she heard that Larsan, her cruel former husband, whom she believed to be dead, is actually very much alive. Taking refuge to her castle, she appealed to the journalist Rouletabille to protect her.