In the eighteenth-century Rome, Don Pasquale Corneto, wants his young nephew Ernesto, dedicated to a wasteful social life, to marry a rich spinster, both to save on the expenses of his maintenance and to increase the family heritage.

Based on the comedy Il successo by Alfredo Testoni.

Old fashioned opera adaptation: A feisty and free spirited woman of the Tyrol withdraws to a mountain peak when she is separated from the man she loves. When he later attempts to rejoin her, disaster results.

During a reception in a villa, wealthy banker Calandri is killed in the park with a gunshot. The gamekeeper Barra is immediately arrested, but he declares himself innocent. During the trial it turns out that the defendant had threatened the victim, guilty of courting his sister-in-law. But the deposition of a journalist present at the party soon leads to discover the existence of a dense network of equivocal relations between the victim, the guests and the servants. This judicial setting drama is allegedly the second Italian sound film after "The Song of Love", made using the RCA Photophone recording technique, and is also considered to be the first Italian detective film, a precursor to the later genre of Giallo films.

In Pisa, chance forces an old bookseller out of his isolation. He unleashes the fury of the tenants of his building, he undergoes the rigors of the law and he is involved in the adventure of two lovers whose marriage he arranges.

An italian film.