Faut-il aimer Mathilde?

Young Frenchwoman Mathilde searches for the truth about her missing fiancé, lost during World War I, and learns many unexpected things along the way. The love of her life is gone. But she refuses to believe he's gone forever — and she needs to know for sure.

Daniel leaves prison. He returns to Marseilles where Mathilda, his daughter, has just given birth. Nicolas, her spouse, a self-employed driver, is exhausted while Mathilda is a sales assistant on a trial basis. But, one night, Nicolas is assaulted by taxi drivers determined to reduce unfair competition.

An inexperienced young actress is invited to play a role in a film based on Dostoyevsky's 'The Possessed'. The film director, a Czech immigrant in Paris, takes over her life, and in a short time she is unable to draw the line between acting and reality. She winds up playing a real-life role posing as the dead wife of another Czech immigrant, who is manipulated by the filmmaker into commiting a political assassination.

The mind of Pierre Bérard, a successful middle-aged architect, is torn between his unstable present with Hélène, his younger lover, and his happy memories of the past with Catherine, his ex-wife; but his true destiny awaits him at a crossroads on his way to Rennes…

Marie, who works as a successful door-to-door encyclopedia salesperson, has been married to her husband Francois for 12 years and has a two-year-old son. Though she is relatively content with her life, she feels something is wanting. Enter 50-year old African-American Bill. Initially she is annoyed by his insouciance, but she finds that she is irresistibly attracted to him. Soon the two are in the midst of sordid illicit affair. She knows little about her new lover, and he seems uninterested in learning about her, but the long sessions of lovemaking are something else entirely. Feeling out of control, Marie is increasingly repelled by her own actions. Psychologically, she struggles to reconcile her torrid encounters with Bill and mundane domestic chores such as bathing her son. Moreover, she finds herself incapable of hiding her adulterous behavior, rather she comes home with scratches and hickeys all over her body, to the devastation Francois.

A good-looking but naive lad leaves his mountain village to try and make his way in Paris. He thinks maybe he will try acting but things don't go too well for him. Eventually he is forced to sell himself to men and though he meets an attractive girl she is herself a prostitute with a vicious pimp.

Polish immigrant Karol Karol finds himself out of a marriage, a job and a country when his French wife, Dominique, divorces him after six months due to his impotence. Forced to leave France after losing the business they jointly owned, Karol enlists fellow Polish expatriate Mikołaj to smuggle him back to their homeland.

Tomas and Martin are a gay couple living in Paris whose marriage is thrown into crisis when Tomas impulsively begins a passionate affair with young schoolteacher Agathe. But when Martin begins an affair of his own, Tomas must confront life decisions he may be unprepared—or unwilling—to deal with.

In a social context deteriorated by a countrywide economic crisis, the life of several people will be turned upside down after they meet Cécile, a character who symbolizes desire.

A businessman leaves his country home, and wife and young son for a business trip to Paris. While there he develops a sexual and spiritual bond with a call girl.