Voluptuous screen siren Edwige Fenech headlines this bawdy comedy about an Italian policewoman recruited to help take down a powerful crime boss. Try as they might, the authorities just can't seem to slap Italian crime boss Big John (Aldo Maccione) with any charges that stick. Leave it to American FBI Agent Maccarone to notice that Italian policewoman Gianna (Fenech) and her assistant Alvaro Tarallo (Alvaro Vitali) bear an uncanny resemblance to Big John's girlfriend Pupa and his bodyguard Joe Dodiciomicidi. Now, in order to bust Big John for good, Agent Maccarone recruits Gianna and Alvaro to infiltrate the organization and gather evidence. Little does Agent Maccarone realize that his ingenious plan has one fatal flaw; his trusty doubles have a penchant for getting into trouble, and by the time their mission is finished New York City will never be the same again.