By mutual agreement, a man and a woman are separated to allow the wife to join her lover.
In pre-World Ward I in Paris, a budding artist, Pierre LeBlanc, falls in love and marries Janine, a dressmaker's assistant. Pierre has a flair for designing clothes, and he and his bride live in a blissful paradise, until the war breaks out and he becomes a soldier. Janine dies in childbirth and, no longer desiring to live, Pierre volunteers for a dangerous patrol behind German lines. While recuperating in the hospital from a wound he received on the mission, Pierre spends his time drawing sketches of dresses. He becomes rich and famous after the war. Years later, after devoting himself to his daughter, Pierre seeks a marriage with a girl no older than his daughter. A conflict develops and to ensure his daughter's happiness, Pierre sacrifices his own plans.
The film portrays the relationship between a female Moroccan student, who has been forced to leave her studies at the Sorbonne for financial reasons and works as a dancer in a Paris nightclub, and a French naval officer. However, on returning to Casablanca she is tricked into believing that he had the led attack on her village that wiped out her family. She begins to plot her revenge.
A rich sugar factory manager wants to marry his daughter to an aristocrat, while the young girl is in love with an engineer, employed in a rival company.
A record seller, and not very serious, Henry spends his nights in a cabaret where there is a Slavic prince in exile. His resemblance to the Prince of Palestria makes him designated to replace the young man who prefers to stay in Paris. And Henry takes with him the one he loves.
Banker Jules Taffard, a true financier, is a shrewd money-handler. Imprisoned for an alleged swindle, his trial seems to be upsetting those in the government, who may not be so far removed from Taffard's affairs (Affaire Alexandre Stavisky). He escapes from La Santé prison without any difficulty, and the authorities don't seem to be doing anything to find him... Under the false name of Gédéon, he becomes a modest handyman in a corset shop run by Madame Génissier, whose morality is as pious as it is legendary. Her son, Hector Génissier, is a foolish young man with no ambition, much to the regret of his young wife, Fernande Génissier. But it won't be long before Gédéon shows his skills in expanding the modest family business. How far can Gédéon's ascent go before Taffard's voice resounds through Gédon?
The plot concerns a comet hurling toward Earth on a collision course and the different reactions to people on the impending disaster.