The film follows four families, with different nationalities (French, German, Russian and American) but with the same passion for music, from the 1930s to the 1960s. The various story lines cross each other time and again in different places and times, with their own theme scores that evolve as time passes. The main event in the film is the Second World War, which throws the stories of the four musical families together and mixes their fates. Although all characters are fictional, many of them are loosely based on historical musical icons (Édith Piaf, Josephine Baker, Herbert von Karajan, Glenn Miller, Rudolf Nureyev, etc.) The Boléro dance sequence at the end brings all the threads together.
Piero arrives in Paris from Luino after having won a pool tournament with friends. In the train he meets the famous place Ramazzini and has so many incidents that culminated with his arrest and the confiscation by the commissioner Juvet. Released, find randomly hospitality at the madame Lenormand and know the great painter Valentine. Both women are tied up, as a wife and lover, Maurice, in prison for robbery. A day Piero wears a mistake and the coat of astrakhan, Maurice, and then...
Fush and Ballestrat are the heads of each department of the French police. Both have the task of combating serious crime and cleaning up the underworld.
Paris, 1933. The daughter of a respectable lower middle class couple, Violette Nozière, leads a disreputable double life. Far from being the innocent 18-year-old her parents mistake her for, she spends her nights with dissolute young men in the less salubrious areas of the city.
Ambrosio is a monk who is sexually tempted by an emissary of the Devil, a young girl in monk's robes. After he has committed numerous crimes, it appears that he will be caught and punished by the Inquisition. Instead, he signs up on the Devil's team and wins his freedom.. and eventually, the papacy.
Emile Magis, a modest employee, more or less ostracized by the others, would like only one thing, to be happy. Little by little he realizes that life in society is a matter of convention, lies and deception. When he has understood that cynicism rules the world, he decides to play by its untold rules and to take his revenge.
An innocent woman falls prey to her abusive husband, his wealthy father and a shady family friend.
When his young son is killed in a hit and run accident, Charles Thenier resolves to hunt down and murder the killer. By chance, Thenier makes the acquaintance of an actress, Helène Lanson, who was in the car at the time of the accident. He then meets Helène’s brother-in-law, Paul Decourt, a truly horrible individual.
Insurance executive Charles suspects his wife Hélène of playing the field, so he has a private detective locate his wife's lover, author Victor Pegala.
A woman must steal a statue from a Paris museum to help conceal her father's art forgeries.
Once upon a time there lived in the same village two men bearing the very same name. One of them chanced to possess four horses, the other had only one horse, so, by way of distinguishing them from each other, the proprietor of four horses was called "Great Claus," and he who owned but one horse was known as "Little Claus"...
French military man Adrien Dufourquet gets an eight-day furlough to visit his fiancée, Agnès. But when he arrives in Paris, he learns that her late father's partner, museum curator Professor Catalan, has just been kidnapped by a group of Amazon tribesmen who have also stolen a priceless statue from the museum. Adrien and Agnès pursue the kidnappers to Brazil, where they learn that the statue is the key to a hidden Amazon treasure.
For young Parisian boy Antoine Doinel, life is one difficult situation after another. Surrounded by inconsiderate adults, including his neglectful parents, Antoine spends his days with his best friend, Rene, trying to plan for a better life. When one of their schemes goes awry, Antoine ends up in trouble with the law, leading to even more conflicts with unsympathetic authority figures.