In Paris, Maxime Saccard visits his wealthy industrialist father Alexandre and his beautiful young Canadian wife, Renée. Alexandre fathered Maxime years ago in a prior marriage and Maxime has come to stay with them after studying in England.
Roxana Aubrey decides to drop her studies and escape her life in Paris for a free diving course in the south of France. She is quickly pulled into a life that reaches new depths brought by the weight of an ocean's descent.
A failed novelist's inability to pay the bills strains relations with his wife and leads him to work at an escort service, where he becomes entwined with a wealthy woman whose husband is a successful writer.
Chloé, a fragile young woman, falls in love with her psychoanalyst, Paul. A few months later she moves in with him, but soon discovers that her lover is concealing a part of his identity.
Gervaise Macquart is a beautiful Parisian laundress and mother whose lover, Lantier, walks out on her. She eventually marries Henri Coupeau, a roofer who has an unfortunate accident. As her now crippled husband descends into alcoholism, Gervaise tries to make ends meet on her own. Life becomes even more complicated when Lantier returns and befriends Henri. Meanwhile, the man she really loves is sent to prison.
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.