The Emperor of Capri

Sonia, a beautiful gold digger, mistakes Antonio, a waiter in a Neapolitan hotel, for the Arab prince Bey of Agapur and makes an appointment with him for the following day in Capri. Antonio goes there behind his wife and mother in law's back. Due to a lucky series of circumstances he really does becomes the prince of the island. Written by Salvatore Santangelo (imdb)