Tanguy is 28 years old and still living with his parents. They think it's time he moves out. He doesn't, so they hatch a plan.

Louise, who has just written a novel, comes to Paris to meet with a potential publisher. While in the city, she stays with her older sister, Martine, who in many ways is the exact opposite of Louise: she lives in a fashionable neighborhood, is cold to others, and has snobby friends, while Louise lives in a small town and is thoroughly unpretentious. Louise's apparent happiness -- and similarities to their mother -- gradually gets on Martine's nerves.

Five years after their summer together in Barcelona, Xavier, William, Wendy, Martine and Isabelle reunite.

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.

Marion and Jack try to rekindle their relationship with a visit to Paris, home of Marion's parents — and several of her ex-boyfriends.

A stern Russian woman sent to Paris on official business finds herself attracted to a man who represents everything she is supposed to detest.

A recently widowed American begins an anonymous sexual relationship with a young Parisian woman.

Pierre Lachenay is a well-known publisher and lecturer, married to Franca and father of Sabine. He starts a love affair with air hostess Nicole, which Pierre is hiding, but he cannot stay away from her.

Successful writer/director Bernard Rougerie is at a creative dead end and decides to isolate himself from his wife in order to complete the script for his next film. Bernard moves into an apartment building whose tenants are in the midst of a revolt against their abusive landlord. Reluctant at first, he joins their cause and then becomes involved in an affair with young, unemployed resident Anne.

Remy, a rat, possesses a palate far more refined than that of his fellow comrades. He dreams of becoming a chef, one who creates rather than scavenges. When fate deposits him in the sewers beneath one of Paris’s most famous restaurants, he finds himself ideally placed to fulfill his dream. Forming an unusual alliance with a hapless young kitchen worker, Remy begins a daring culinary double life. As Remy pursues his vision, he must navigate the suspicions of the calculating Head Chef Skinner, the disapproval of Remy’s own colony, and the foreboding presence of renowned food critic Anton Ego, who strikes fear in the hearts of chefs all throughout France.

Lucas, a wealthy, 43 year-old divorced businessman, is irresistibly attracted to Elsa, a 38 year old renowned sculptor from whom he has commissioned a piece to decorate the reception at his office.

In the carefree days before World War I, introverted Austrian author Jules strikes up a friendship with the exuberant Frenchman Jim and both men fall for the impulsive and beautiful Catherine.