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.

Bomber is an unemployed boat captain. One day he meets Jerry, a manager of boxers who are struck by the force of his fists. That is when they see the chance to win big money.