Donne sbagliate.

Silvia Soriani, widow of a merchant associated with the Camorra, is arrested by the police. The commissioner and the judge Puglisi Corelli accuse her of collaborating with the mobster Franco Maresco. In jail meet three dams, Anna, Giulia and Elvira, who have been victims of Maresco. From this moment the four women join forces to find and kill the brawler.