In the Venetian Republic a series of murders are carried out by a hooded man in black who always makes his escape through the city's waterways on a gondola.

A professor was appointed member of the jury of a beauty contest and falls for a beautiful contestant. In order to get the girl he must win the "Tour of Italy", so professor sells his soul to the devil to get the winning and the girl.

A young farmer, with a magnificent voice, receives an invitation to present himself in a large theater to be hired. In reality, the invitation is a joke made by his cousin.

A witty tram driver helps out a jobless girl in wartime Rome.