Trini Alonso

A widow invites thirteen guests to stay at her rural mansion. She reveals to them that she suspects whoever killed her husband must be one of them. Soon, they too are being murdered one by one.

Manager Marletti goes to the sea to meet his wife Giuliana to spend the weekend with her and many friends. After three days Marletti comes back driving his car to Rome. So he can sleep, alone and happy, with silence around him.

A young housekeeper's daughter pretends to be wealthy in order to impress her best friend's fiancé.