Two inmates escape prison changing clothes with a couple of businessmen. They'll be taken by the financiers and find themselves surrounded by wealth and beautiful women.
Laura is the victim of a blackmail, asks for help to her childhood friends Renata, Marina and Giovanna in the meantime become a nun to collect the amount requested.
A clothing merchant Ofelia, a naïve housewife Rina, and the outspoken nurse Edna meet at a police station and discover that they share a failed sentimental life.
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.