The film tells the story of Maria, a young typist who falls in love with a distinguished gentleman by whom she becomes pregnant, without knowing that he is married. The gentleman, assailed by debts resulting from his dissipated life, depends upon his rich wife, and has no intention of marrying the poor girl. After having refused the money offered by him in compensation for her dishonour, Maria wanders desperately, with her baby in her arms, until she decides to accept the propositions of a stranger, with the single aim of buying a gun to carry out her own revenge.