Fearing the theft of an important secret formula, the scientist Claude Amory asks for help from Monsieur Préval, director of the Sûreté. But when Amory is mysteriously poisoned inside his own home, the detective realizes the case is more serious than he had imagined and decides to investigate each of the suspects.

Misanthrope Raymond Ferray's life of peace and quiet is disrupted by the arrival of his new neighbors the Rovels. Lady Rovel designs on marrying her daughter Meg to the much older Marquis de Boisgenêt. Her mother agrees not to force her, however, if she can find a suitable alternative. Raymond, who despite himself has taken a great interest in Miss Rovel, helps her to find one.

Fictionalized biography of the sculptor Bartholdi.

A mother of three escapes the death sentence during her poisoning trial. After spending ten years in prison, she finds her children and rebuilds her family.

Little Germaine Valcour, an adulterine child, is abandoned and taken in by a showman, Father Ballot. She becomes the consolation of the good man whose daughter has gone wrong. Madame Vaulcour died of grief while her lover, after many bad blows, takes justice into his own hands. The girl stays with her adoptive parents.

The daughter of the austere professor Smithson, during a walk on skis, loses her balance, revealing her underwear. An indiscreet photographed the scene. Smithson demands that his daughter marry this man, but who is he? He luckily turns out to be the young man she loves.

A young husband, annoyed by his stepmother, divorces and marries a young girl whose father is a widower. When the two new spouses return from their honeymoon, the stepfather has married his son-in-law's first wife.

Based on an opera by Rossini and an opera by Mozart, taken from the work of Beaumarchais.

A prudish man becomes, by inheritance, owner of the Bal Tabarin which, according to the testamentary provisions, he must manage himself. He launches himself happily into this life of pleasures and hides it from his family.