The young Alfredo repairs motors in Rome, but he is vulgar and ignorant, although Alfredo is very friendly with a noble: the "Count Max". Max often invites Alfredo in his palace, amused by Alfredo's gruff ways, and eventually decides to teach him the true ways of etiquette. When the Count Max falls in love with a mysterious French girl, and chases in Paris, Alfredo finds himself alone in a noble palace, and organizes a big party.