This semi-amusing sex (romance) comedy has four separate stories: "The Telephone Call", written by Rodolfo Sonego, directed by Dino Risi. "A Treatise on Eugenics", written by Tullio Pinelli from a story by Luciano Salce and Steno, directed by Luigi Comencini. "The Soup", written by Rodolfo Sonego and Luigi Magni, directed by Franco Rossi. "Monsignor Cupid", written by Leo Benvenuti and Piero de Bernardi from a story by Boccaccio, directed by Mauro Bolognini.

A low rank journalist at Tribuna Sera newspaper receives a letter one day. His correspondence contains a serial killer's letters, which he exploits.

A humble Milanese window-cleaner with dreams of magazine and TV fame accuses himself of the murder of a soprano from La Scala.

A young policewoman discovers an ecological scandal and must face the corruption in the Milan Police department.

A female school teacher is implicated in a murder in a Sicilian town only hours after her arrival. The dead man insulted her on the bus on the way into town. As the mystery unfolds, it becomes clear that the town is hiding some very sinister secrets.

Following the opening of a Japanese auto factory in Sicily, the head of the company is kidnapped by Sicilian mobsters. This was a co-production between Italy and Japan's Toho Studios.