After committing a murder, a man locks himself in his apartment and recollects the events that led him to the killing.

Alex Grégoire is a timid insurance company clerk who shares his uneventful life between his wife Angèle, his colleagues and his passion for crosswords. But all of a sudden his existence changes dramatically. First because he wins a crossword competition. Second because a jewel thief, Charles Tuffal, thinks he recognizes in him a former accomplice. From that moment "uneventful" is not the best adjective to qualify Alex's life anymore...

Cecile, a young girl who goes to the offices of the Judicial Police several times in a row to complain about nightly visits to the apartment she occupies with her aunt, is not taken seriously by the police until she the day she is found murdered.

The knight Henri de Lagardère wants to avenge the death of his friend, the duke Philippe de Nevers assassinated by the prince de Gonzague, a few years before.

An untiring lady social worker, Émilienne, has as one of her charges a stableman who was wounded by his mistress. Unfortunately, Émilienne's young sister who was helping her at work decides to go away with the stableman.

On a rainy night, eccentric tramp Mr. La Souris finds a corpse. But the body soon vanishes in his car leaving only his wallet. While the police start investigating a missing person report, La Souris concocts a plan to secure his find.

A ruined banker is abandoned by his mistress. He commits suicide after entrusting a prostitute with twenty-thousand francs. The money changes hands. A crook is arrested in the house of an an actress he had fooled. In a luxury hotel, a typist kills her lover's wife. The trial of the murderer is followed by the bankruptcy of another financier and the money finally returns to the mistress of a suicide in the restaurant in which she had first appeared.

A very ill little girl having expressed the wish to live until Christmas, the whole neighborhood agrees to anticipate the celebration.

Patrica is the wife of Alain de Saulieu, a handsome engineer. She unfortunately loses her husband, who is killed in action during a battle of the First World War. At least, this is only the official truth, for Alain is not dead. Patricia indeed recognizes him one day. But the inverse does not work the other way around: Alain has become amnesiac and he does not remember her. And worst of all, he lives in a conjugal relationship with Germaine, his dedicated nurse, who is now pregnant by him. What has the future in store then for the three (not to say four) of them?

Monsieur Vincent is the respected healer of a Basque village. But nobody knows that Vincent Berteaux used to be a surgeon in Paris. When Assomption, a young holidaymaker, arrives in the village in the company of her mother, little does Vincent know that the past returns to his life.

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.

The invincible bandit faces his daughter, courageous and honest, who wants to end his criminal activities. With a young journalist, her fiancé, she discovers his hideout.

Marie is one of her kind. While the other girls are after gold, diamonds and jewels, she swears by ... poverty! She does not remain the companion of a banker too long for obvious reasons. But when she can be the muse of a poor music composer it is fine by her. Unless the musician becomes too famous...! Then, she leaves him! But maybe not forever... He can fall into poverty again, can't he?

The film is biographical, telling the story of the life and artistic struggles of the French composer Hector Berlioz. Berlioz is shown as a recalcitrant medical student in an anatomy class dreaming of becoming a composer; at a demonstration during a performance at the Paris Opéra conducted by Habeneck; at supper with other young artists (Hugo, Janin, Dumas, Mérimée, Delacroix); and chasing after his future wife Harriet Smithson, after a performance of Hamlet. Also depicted are his life in a garret, while suffering from an illness due to an abscess in the throat; a visit from his mother who curses him; and the composition of the Symphonie fantastique. The film then shows his marital breakdown, the premiere of his opera Benvenuto Cellini, his travels throughout Europe, his second marriage to Marie Recio (called "Marie Martin" in the film), public acceptance in old age and reconciliation with his son.

Jules Leroy, an industrial shoe polish manufacturer, on his deathbed reveals to his son Achille that the family fortune originates from an inheritance stolen 23 years earlier. The one who should have inherited is one of the factory employees, Hyacinthe Camusset. The latter is also one of the lovers of Lucienne Leroy, the daughter of the family, who has a penchant for Jean Bernon, a boy who dedicates verses to her. Hyacinthe is unaware that he has been robbed but the Leroy family, who are not sure, try to woo him. The family, Hyacinthe, Jean and Lucienne meet at the castle.

The everyday life and activity of "La Dernière Heure", a major evening newspaper, seen through the eyes of Hélène Perrin, a cub reporter trained by Pierre Rabaud, a star in his field. Side by side they will investigate several events: an air show that ends tragically, the coming to France of a Hollywood actress, a lightship caught in a terrible storm...

A friendly average Frenchman pretends to be a famous commissioner on vacation. He arrives in a castle converted into a boarding house where, after dinner, guests are invited to participate in a "murder-party". The so-called victim of this little game is really murdered and the fake commissioner must lead the investigation.

A shy but resourceful seller of corks helps a young man get married by passing himself off as a wealthy uncle in the eyes of the mother of the future bride, a marquise hostile to any misalliance.

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

Guy Carbonnel, a rich industrialist, has more eyes for rugby than for his wife Hélène. René Rivals, his long-time pal, takes advantage of it to court her but Guy is becoming suspicious so René has to find a way to deflect his friend's suspicion. He finally has an idea: he asks Lilian, a circus acrobat, to pose as his mistress. Lilian accepts and they embark on a series of eventful moments.