Bruno Corbucci

Tomas Milian as the unconventional undercover cop with a pet mouse named 'Serpico'. Still difficult for an investigation commissioner Nico Giraldi, this time struggling with a gang who commits theft in luxury apartments in Rome.

An ex-con returns to Miami after completing a seven-year sentence for thieving $20,000,000 and is murdered. Two FBI agents are then shipped to Miami to investigate the case under the guise of cops.

A playboy who makes a living out of seducing women and stealing their jewellery accidentally witnesses a Mafia murder. He must work together with the man who is constantly trying to catch him, Lt. Alan Parker, in order to save his life.