François Donge, a rich industrialist and womaniser, meets a girl nicknamed Bébé who he marries. Ten years later, poisoned by his wife and dying in hospital, he recalls his married life and understands how his wife who adored him suffered from his many affairs and indifference.

Loursat, a lawyer, lives with his daughter Nicole in a sinister and vast bourgeois residence. Abandoned for nearly twenty years by his wife, the brilliant lawyer has sunk into alcoholism and his relationship with his daughter is virtually non-existent. However, one day the corpse of a stranger is discovered in the residence of Loursat. Nicole, who frequents a gang of young people who escape boredom by stealing cars and other objects, is immediately suspected.

1920, in a small village in Provence. Monsieur Pascal, a young schoolteacher, is faced with a lack of interest from his pupils. He decides to radically change the methods employed by his predecessor. He listens to the children, draws inspiration from their discoveries and takes them out into nature. The pupils will rediscover the pleasure of learning, and he will rediscover the pleasure of teaching. But some parents and notables don't take kindly to this little revolution.

A middle-aged Parisian lawyer meets a young girl and falls in love with her. The girl's mother discovers the affair and the couple must flee.

Five young people - brothers, sisters, cousins ​​- are on vacation in the countryside. Pernette suggests to Marianne, who wants to be appreciated by her cousin Olivier, to make him jealous by inventing an aviator in love. At this announcement, Olivier bursts out laughing, but an airman knocks on their door, his private plane having had a breakdown. The mirage then becomes reality, and thanks to this unexpected visit many feelings will come to light.

Elsa Lundenstein is accused of having murdered her lover. The jury discusses the case vividly. All members are somehow prejudiced because of personal life experience and subsequently each member reads something different into the presented facts.

The practice of Dr. Julien, a GP of Marseilles, consists mainly of drug-addicts. One day, one of his patient dies at his surgery and Julien yields to the temptation : he steals the dead man's money and hides the corpse in a trunk. But the whole thing is discovered and ... misinterpreted. The doctor is condemned for killing the junkie and sent to the Cayenne convict prison, from which he escapes. The Indians give him shelter and he is soon given the opportunity to return their good deed when a yellow fever epidemic strikes their tribe. A young woman helps to fight the disease and, thanks to her, Julien starts considering that a new life is possible for him.

On the Franco-Belgian border, large and small traffickers engage in their illicit activities. For his part, a policeman is working to put an end to smuggling in the area.

Madame Guérin, who has been suffering from cancer, benefits from a period of remission and she tries to regain health at any price. That is why she decides to consult a healer. But when her friend, also affected by cancer, is saved by an operation, she hesitates between traditional and parallel medicine.

Picpus is a street and a subway stop where a number of murders have been committed. Maigret tries to find the killer.