Rome, 1800. Rugantino is a fool in love that rages eternal, though he is very unlucky in love stories and fruitful occasions. In fact, he is denounced for trying to rob the elderly uncle of his inheritance, apparently believing that he's dying and Rugantino sentenced to public torture of a squire. Rugantino is in love with young married Rosetta, whom she appears to love because of his innocence and ineptitude. The young man is then accused of murdering a Roman nobleman and sentenced to death. His fate is sealed, and after spending a few days in jail, Rugantino is beheaded.