The film is based on a play by the famous Neapolitan writer Eduardo Scarpetta, father of Eduardo De Filippo and Peppino De Filippo. The story is set in Naples and Sorrento in the second half of 1800. The thief ''Felice Sciosciammocca'' (the surname in Naples means "one who is always with her mouth open in astonishment"; ''Felice'' means "Happy") together with the bandit Faina ("Weasel") escapes from prison and meets with a Turkish eunuch that he should go to Sorrento for a job. Don Felice kidnaps him and steals his letter of recommendation to get into the house of a rich businessman, so that gains a bit of money for him and for his accomplice. The man who had called the Turkish is the rich grocer Don Pasquale, being jealous of his wife and young daughter, betrothed to Don Carluccio holding a dowry, is to host the Turk and immediately test some suspicion. In fact, the Turk rather than look like an eunuch protector proves to be a great womanizer and causes the sympathy of all the girls in the town and the wrath of the young. Don Felice, forgetting appears Faina, have fun in monitoring the wife and daughter of Pasquale and Don Carluccio appears more and more restless by the net waste of his betrothed. In the following days Don Felice will be met with the Honourable MP Cocchetelli who had recommended the real Turk to Don Pasquale, but cannot reveal the truth because Don Felice surprised him with a girl who was not his wife. On the day of the wedding, don Carluccio, after an engagement party gone wrong, stormed into the house of Don Pasquale to beat him, but Don Felice intervenes and gives the marching orders to the bully who runs away scared. All thank Don Felice, who reveals his identity and claims to have done all this misunderstanding and funny situations to entertain the audience watching him from a theater.