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.

During WWIII a young soldier meets an old physicist, who claims to have created a pill sending the user a few minutes into the past. The soldier requests to try this amazing pill.

A young man wakes up one day transformed into a giant insect.

The independently-minded daughter of lower-middle class French shopkeepers, Brigitte, one of three sisters, refused to marry the father of her child when she became pregnant. In this film, she reminisces about her family life beginning when she was about five years old, up to the present when she is in her early 20s. Of her two sisters, one has a nervous breakdown and the other one becomes something of a baby factory. Colorful anecdotes of her eventful life lend additional depth to her insights.

To emerge from anonymity, a young man assumes responsibility for a crime he did not commit.

The children of Harpagon, Cléante and his sister Elise, are each in love but they still haven’t spoken to their father yet. Harpagon is a miser who wants to choose the right man and the right woman for his children. Based on Molière’s play.

Omar, a young Franco-Algerian from La Garenne-Colombes, decided to spend his vacation in the country of his ancestors, Algeria. On his return, he boards the ferry “Le Tassili” and during the crossing, he meets people who share his doubles, in a good mood that does not hide their heartbreaks.

In this surreal, overstated, black-and-white film by Marcel Schuepbach, a young woman is slowly driven to near insanity by an inner desire for a passionate existence, while she lives a dull life at her grandmother's country home. The grandmother recalls how her own daughter lost hold of sanity and died on her lover's grave -- and she begins to see similarities in her granddaughter's behavior.

A famous director wants to make a film about true love, the kind his grandparents experienced when they lived together for 60 years. For this project, he holds auditions in a commercial real estate office. He asks the actors and actresses he meets to tell him about their conception of Love, with results that differ from those he expected...

Nicky and Anna, brother and sister, reunite in their childhood home in the Venetian countryside. Accompanied by Anna's lover, Claudia, and Nicky's partner, Picchio, they plan to spend a Sunday together when fate intervenes.