Urban horticulturalist Brontë Mitchell has her eye on a gorgeous apartment, but the building's board will rent it only to a married couple. Georges Fauré, a waiter from France whose visa is expiring, needs to marry an American woman to stay in the country. Their marriage of convenience turns into a burden when they must live together to allay the suspicions of the immigration service, as the polar opposites grate on each other's nerves.
Léon, the top hit man in New York, has earned a rep as an effective "cleaner". But when his next-door neighbors are wiped out by a loose-cannon DEA agent, he becomes the unwilling custodian of 12-year-old Mathilda. Before long, Mathilda's thoughts turn to revenge, and she considers following in Léon's footsteps.
