Salvatore and Rosalino are sentenced to death by the Mafia because they are accused of having seduced the daughters of a boss. As they are about to be shot they manage to escape with the two girls.
In the study of a lawyer, two young spouses tell their story. The singer Tony manages to reach the much coveted success, and can thus marry his girlfriend. But a clause in his record contract obliges him to remain a bachelor for two years.
While her new husband is away looking for work, the wife loses the child she was expecting and uses another woman's baby as a substitute so she won't have to upset her spouse when he returns.
Roberto Maldi, a young scientist, is trying to find a serum capable of giving courage but he unwittingly invents a serum which transforms any man in a womanizer. His boss scents a good business and wants to produce the serum on industrial basis, but Roberto does not agree.
