A mysterious man, who had lost his memory, arrives in San Marino among other refugees during the Second World War.

A daughter discovers her parents are far from being the rich bourgeois she thought they were.

Guido Renzi and his lawyer friend chase a beautiful girl to return a purse that he lost and after a long drive in the car reach the laboratory of an improvised astrophysicist - the girl's father - who, together with another scientist, is about to take off in the direction of Mars aboard a missile.

In Amalfi, a young man loves a girl who prefers the organizer of a beauty contest. The rejected lover finds an unexpected ally in the girl's aunt, an elderly dramatic actress who lives in the memory of a suitor who she believes committed suicide for her (instead, he survived and is present in the same tourist resort).