The story of two boys, who enrol in a navy academy for boys.

A mysterious man, who had lost his memory, arrives in San Marino among other refugees during the Second World War.

A mysterious woman dressed in black slaps a man who is about to get married.

Alberto, son of a rich engineer, falls in love with Luisa, a ruthless manicurist who is only after his money. His parents offer him a holiday in Venice because they hope he will forget her. Alberto however leaves for Venice with Luisa, who has asked a friend of hers to take her place at the beauty parlour. Alberto's parents go there and mistake Teresa for Luisa. A series of misunderstandings ensues...

Two half brothers, one a pilot, the other a repairman at the plane factory of their father, are in a disagreement due to the envy of the younger brother, son of the first wife of their father. Then both brothers fall in love with the same woman; this causes more conflict between the two, making worse an already tense situation.

A singer saves a heavy alcoholic journalist. Fate has a new meeting for them: the two are found in a police station where she was brought with the accusation of prostitution.

Guido Renzi and his lawyer friend chase a beautiful girl to return a purse that he lost and after a long drive in the car reach the laboratory of an improvised astrophysicist - the girl's father - who, together with another scientist, is about to take off in the direction of Mars aboard a missile.

Based on the comedy Il successo by Alfredo Testoni.