In the early 20th-century, Frenchman Claude meets Englishwoman Ann in Paris. Ann invites him to her family home, intending him for her sister Muriel. Claude falls for Muriel, but families demand year-long separation before approving marriage.

A precious work of art from the Italian Renaissance is stolen and passes through many hands before ending up in the shed of the farmhouse of Mr. and Mrs. Dujardin, fishmongers, who are inaugurating their luxury fish shop that very day. But the antique dealers, the free-riders and the bargain-hunters are there. They are jealously careful not to pass on the fruit of their clever investigations to their rivals, for all of them, after a picturesque treasure hunt, know that the Dujardin family own the famous Duranti altarpiece. But where have they hidden it themselves?

Witty narration follows the history of Versailles Palace; founded by Louis XIII, enlarged by autocratic Louis XIV, whose personal affairs and amours, and those of his two successors, are followed in more detail to the start of the Revolution, after which the story is brought rapidly up to date. A huge cast plays mainly historical persons who appear briefly.

A mix of characters and actions create only a semblance of a plot in this confusing tale of intrigue, undefined crimes, and incest. A newspaper reporter is working on a story about a criminal serving time in jail. He interviews the prisoner, has an affair with the criminal's daughter, and also spends some time in bed with his editor's wife. His amorous life is an adjunct to his searching out the details of the prisoner's case -- though tragedy strikes before the journalist can wrap everything up. In the meantime, it becomes clear that the daughter and imprisoned father had an incestuous relationship, raising more questions than answers.

Eloi is a twenty-year-old secondhand goods dealer who does his job without particular enthusiasm. He has a girlfriend, Nénette, but immature as he is, he feels just as happy in the company of Fortunée, his young sister, whose little girl's games he shares as often as he can. The three of them live with Eloi and Fortunée's grandmother, nicknamed by all the "Queen of the Flea Market". In possession of a mirror of Venice, Eloi decides to present it to Dormoy, an antique dealer who keeps up shop in the fashionable districts of Paris. On that occasion Eloi meets and falls in love at first sight with Dormoy's rich mistress. The latter, half-moved, half-consenting, does not discourage him.

Mario di Donati, a deserter from the Italian army, lives in Paris under a false name with Germaine, his French lover. When the latter learns about his hidden past, she feels hurt by Mario's lack of trust in her and she distances herself from him. In despair, Mario surrenders to the law but, at the time of trial, he runs away to join the woman he loves.

"La neige était sale" is based on a novel and play by the phenomenally prolific Georges Simenon. Upon learning that his mother was a prostitute, Frank (Daniel Gélin) dejectedly vows that he, too, will live a life of debauchery. Part of his self-degradation program is to kill someone, and since the story takes place during the Nazi occupation of France, he chooses a German officer as his victim. His steady descent into psychosis and depravity becomes his ultimate undoing.

The film follows the life of Napoleon from his early life in Corsica to his death at Saint Helena. The film is notable for its use of location shooting for numerous scenes, especially at the French estates of Malmaison and Fontainebleau, the Palace of Versailles, and sites of Napoleonic battles including Austerlitz and Waterloo.

For Naval officers duty comes first. Navy Lieutenant Favrel is one of these men. He has promised his wife Simone to stay with her all the time but a last mission aboard a training cruiser makes him realize that his life is tied to the sea. For his part, Navy cadet Pierre Hardouin understands that sailing is his vocation. The prospect of staying home alone while Pierre is on mission, frightens Madeleine, the girl of his heart. But the young woman ends up accepting the ordeal and marrying Pierre.