After murdering her illegitimate baby, Isabella (Tania Weber) pins the blame on her innocent cousin Consuelo (May Britt). Despite the strenuous efforts of her attorney-lover DeSylva (Ettore Manni), Consuelo is found guilty and shipped to a penal colony along with several other female prisoners. En route, the women mutiny, and the ship is sunk. Likewise improbable, though eminently satisfying, is the film's finale.