Mr. Imperium (Pinza), a royal bachelor prince, takes a vacation in Italy, where he meets and falls in love with nightclub singer Fredda Barlo (Turner). Circumstances force them to part at the end of the trip, but the two meet again ten years later, after Mr. Imperium has become king and Fredda has become a major Hollywood movie star. Passion rekindles again in the two, as they renew their romance.