Middle-aged best friends Eddie and Patsy live in an endless haze of drugged, drunken selfishness. The duo leave no impulse unenacted and no lust unsated — be it for sex or the latest in designer clothing. Waking up from a night of drunken debauchery, the two dip right into a feast of champagne and caviar, much to the irritation of Eddie's elegant mother and her resentful daughter. As Eddie stretches an appalling pair of leopard-print leotards (complete with matching shoes, purse, and hat) over her massive rear end, she and Patsy learn of a handsome young rollerblading delivery boy who quickly becomes the object of their lust.

Claire's handbag is stolen. It contained a letter written ten years previously by the man who is now the French President. In the letter, he urges his pregnant mistress to have an abortion. Claire immediately alerts the President's men. From that moment, the machinery of state swings into action.

After a tumultuous life, a middle-aged headwaiter in a Parisian restaurant dreams of opening a seaside amusement park. When an old flame reappears, he reignites his feelings, but she is involved with another man.

A stodgy, married schoolteacher has a chance encounter with a free spirited young woman who loosens him up and introduces him to a hippie lifestyle.

Two physicians, one old and one young, fall in love with the same woman, Juliette, a quixotic hairdresser. First, she is with Raoul, the older one; then passion for Clément, the younger doctor, takes over. Raoul fights back, playing on Clément's guilt and Juliette's lack of self-assurance; then, Clément makes his case to Juliette, abandons his fiancée, and takes her to the provinces where he sets up practice and asks her to have a baby. She panics and abruptly leaves Clément, taking up with Raoul again. When she contracts Hodgkin's disease and the treatment does no good, Raoul believes she has the malady of love. Is there a cure?

Fleeing fame, the writer Anatole Hirsch decides to publish his new book under the name of his cousin, Martin Bassane. This book wins the Prix Goncourt. A film inspired by the story of Romain Gary.