Giulio Campagna is a policeman with a long experience and not always polite manners. Following an investigation that went badly he swore to himself that he would never again use information from confidants. But the boss gives him another such mission.

Vincenzo Tagliaferro, a former policeman, asks his friend Inspector Giulio Campagna to help him find the woman he is in love with, who disappeared into thin air after the murder of a man.