There is an author who has been dumped by his girlfriend and has no inspiration for a next novel. In an attempt to find a solution to both crises, he, along with his publisher friend, decides to seduce a young woman with the singular purpose of keeping a diary of the seduction and then dump her before publishing the book about it. Unfortunately he falls in love with her.

Famed swordsman and poet Cyrano de Bergerac is in love with his cousin Roxane. He has never expressed his love for her as he his large nose undermines his self-confidence. Then he finds a way to express his love to her, indirectly.

Dominican friar Etienne de Bourbon visits a 13th-century French village in search of heretics for the Inquisition. Despite the opposition of the local priest and the indifference of the villagers, he finds a seemingly perfect suspect: a young woman who lives in a forest outside the village and cures people with herbs and folk remedies. In the process, he discovers the cult of the greyhound "Saint" Guinefort, and confronts his own troubled past.

France, 1965 - An aging mamma's boy becomes the replacement leader of a rowdy group of teenage boy scouts who make his life miserable.

Claude Massoulier is murdered while hunting at the same place as Julien Vercel, an estate agent who knew him and whose fingerprints are found on Massoulier's car. As the police discover that Marie-Christine Vercel, Julien's wife, was Massoulier's mistress, Julien is the prime suspect. But his secretary, Barbara Becker, while not quite convinced he is innocent, defends him and leads her private investigations.

Various experiences of childhood are seen in several sequences that take place in the small town of Thiers, France. Vignettes include a boy's awakening interest in girls, couples double-dating at the movies, brothers giving their friend a haircut, a boy dealing with an abusive home life, a baby and a cat sitting by an open window, a child telling a dirty joke, and a boy who develops a crush on his friend's mother.

Parisian everyman Antoine Doinel has married his sweetheart Christine Darbon, and the newlyweds have set up a cozy domestic life of selling flowers and giving violin lessons while Antoine fitfully works on his long-gestating novel. As Christine becomes pregnant with the couple's first child, Antoine finds himself enraptured with a young Japanese beauty. The complications change the course of their relationship forever.