After getting screwed over by life (again), two losers decide that enough is enough. Using stolen ski masks and stolen toy guns, they take hostages in their local bank, holding them for ransom. Things go well until the hostages learn what's going on, and demand a piece of the action for themselves.

A streetwise Paris policeman who takes kickbacks from the minor criminals on his beat to allow them to continue is assigned an idealistic new partner fresh from police academy. He sets out to corrupt him...