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.
Coming of age, a girl is told the truth about her dead father: he is alive, but imprisoned for several crimes he did not commit... With the help of an old noble lady and a young count (who doubles as a daring sea captain), she will fight for the truth, and justice. Her opponent is the State Town's Inquisitor himself, who set her father's up to escape his own crimes.
Love and jealousy in a female public school. Most of the co-eds are in love with professor La Rovere. One, Anna, accuses Maria to have an affair with him.
Antonio De Papis is a lawyer and his specialization is separation by mutual consent. He is contrary to marriage because he sees so many of them going wrong. So when his nephew calls on him asking for his approval to his marriage, Antonio suggests to him to spend a day in his office to see what marriage really is.