An Arizona policeman and his pilot buddy discover a scheme to rob Las Vegas slot machines by computer.

In an accident the young mechanic Marco Coccia meets Cristiana. The two fall in love with one another. Cristiana confesses only later that she is a genuine princess. For Marco it is not a problem, but for Cristiana's parents it is a very big problem. The two must separate. When one evening Cristiana calls Marco and lets him know about her forthcoming wedding, Marco with the car races toward Paris and has an accident...