Bruno devises a mean to test the love of his girlfriend Isabelle. Since Isabelle had been in love with Alain in the past, Bruno invites Alain to a surprise birthday party for her at a hotel -- what better way to judge her feelings than to get them together? Alain arrives with his current girlfriend Lio. Soon after the two couples start the evening off, their polite exteriors deteriorate.

Cast

Ann-Gisel Glass

Isabelle

Jacques Bonnaffé

Bruno

Fanny Bastien

Lio

Xavier Deluc

Alain

Françoise Brion

Isabelle's mother

Henri Virlogeux

Isabelle's father

Charlotte Gainsbourg

The child

Anne-Marie Maillé

The girl