A clerk has had a picture taken during W.W.I with the future Italian dictator Mussolini and tries to exploit the situation pretending he is a dear friend of his. When he finds out who Mussolini really is he changes his mind and goes back to his bleak life.
Benito Mussolini resurfaces in Rome 72 years after his death, as if not a single day had passed. Finding a country still full of problems, both old and new, his firebrand rhetoric wins him once again the hearts and minds of millions of Italians — who see him as a wacky reenactor who speaks inconvenient truths to power.
In 18th-century Rome, impish aristocrat Onofrio del Grillo amuses himself by playing pranks on all sorts of people — his reactionary family and fellow nobles, the poors, the French occupiers trying to modernize society, and even the Pope himself.
Sergio Benvenuti is a shy seller of contracts for a Roman company of music, but because of his character he cannot find even a customer, so he asks for help from a fellow named Nadia.
Antonio, a former variety actor, keeps his daughter in an excellent boarding school by organizing small scams with his friend and colleague Felice. Commissioner Malvasia good-naturedly persecuted him. When their respective unsuspecting children fall in love, the two fathers make peace.