Barny, although a Marxist, is intrigued by the mysteries of religion. In confession, she teases a priest, Léon Morin, but he is a young and intelligent man and ready to discuss anything.
A green mare makes the fortune of her owner, the horse dealer Haudouin. Shortly after his death, war broke out in 1870. One day, his neighbor Zèphe Maloret denounces Honoré, Haudouin's son, a maverick, to the Prussians. Following this denunciation, their non-commissioned officer enters the Haudouin home and rapes the mother while Honoré is hidden under the bed. The resentment already existing between the Haudouin and Maloret families turns to hatred... A letter recalling the events is lost, which doesn't help matters.
Philippe Marcillac grew up in Sète, where he specialized in pranks of dubious taste. One day, as a teenager, he organizes a party in an abandoned villa. Philipe finds himself alone with Marie-Titite, who advises him to restart his life on a more serious footing.
Hélène and Aldo Giovanni are a circus trapeze double act and a couple. Aldo is temporarily replaced by former-partner Alexandre when the former is injured. The two get into a fight and the following day Alexandre is discovered dead. Hélène suspects her husband is responsible for the murder.
In 1935, in the Burgundian village of Valromey, Commissioner Desbordes was the very unpopular leader of the anti-alcoholic league. His own brother, Pimpin, is an unconditional defender of the vineyard. Pierre Moreau is, for his part, the representative of a hygienic drink, the "Koku-Kolu". The cafe owner's daughter, Rose, will find the man very to her liking and will manage to seduce him.
Paul Dorgères, a wealthy industrialist, has been mysteriously murdered. The investigation is entrusted to the experienced Chief Inspector Bonnardel and his young rookie assistant, Inspector Richard. Suspicion turns to his mistress Catherine Villard, with whom he had just broken up on the night of the crime. She is soon arrested and charged. However, Inspector Richard discovers a button at the scene of the crime which could help him to trace the trail and confound the culprit(s).
Bienaimé, a modest postman, in love with Janine, the village postmistress, does not know that he is the illegitimate son of the old Baron de Mondésir. The Baron dies and in happy amazement, Bienaimé finds he is the sole heir to the deceased's estate. But he should be careful, for two crooks, Waldemar and Erika, are after his newly-acquired wealth.