In a luxury hotel in Miramare, a competition is organized between pop music singers. Famous celebrities and famous singers are invited.

When a promising record company president is arrested, his daughter takes over his company to promote her own rock and roll music by promoting various young singers.

Follows the adventures of a group of friends, teddy boys and rock and roll chicks whose crazy, fun-loving habits inspire jiving from some of Rome's citizens, and bitter complants from others which inspire a group of corrupt officials determined to a bring the group down.

Duke Altichieri rises to power, after his associate, Cpt. Alberico, kills governor Conte Filippo della Scala. 10 harsh years of tyranny follow, until a mysterious figure appears out of nowhere, helping people in their struggle against the regime. He is known by the name Red-Masked Prince, but who is he?

There is a lot of excitement in the high society of Venice: An Arab prince, who always travels incognito, is said to be in the city. By chance, the elegant Isabella gets to know the handsome heir to the throne - and it does not take long for her to fall madly in love with him. Isabella has no idea that her dream man is really the impostor Gérard, who looks remarkably like the prince and was hounded by the sleazy crook Alfredo on Isabella to steal their precious jewelry.