Sami, Tacchini, Yaya and Kader are four small-time crooks from the suburbs of Paris. After a failed robbery, their boss, Carlito, sends them to Canada to spy on his fiancée. There, they are mistaken for a band of professional killers and are hired to assassinate the heiress Léonore de Segonzac...

Several guests who are lesbian or gay go to a home for Christmas.