After attempting to set a mailbox on fire, Pimpette, 14, and her elder sister, Joséphine, spend their summer holidays shuttling between their secretly pregnant mom and bachelor father. But when Joséphine gets involved with the wrong crowd, little Pimpette turns out to be more responsible than the grown-ups who spend their time educating her.
A timid accountant tries to earn his living as a rather unsuccessful hitman, until an accidental killing of a mobster makes him a target for the vengeful mafia boss, murderous gangsters, trigger-happy cops and the dead man's psychotic wife - and if he's not careful his own wife might catch wind of his double life too.