Antonio, Peppino and Lucia are three brothers who live in the country near Naples. Lucia's son, Gianni, goes to Naples to study medicine, but there he knows a ballet dancer. They fall in love and, when she goes to Milan, Gianni follows her. Informed of this and afraid that their nephew will stop studying, the three Caponi brothers leave for Milan to persuade Gianni to come back and continue studying and abandon the "Malafemmina" (bad girl).
After his son is kidnapped, a millionaire industrialist seeks revenge, in spite of the potential danger that his rash actions will bring about for his child and another kidnapped boy, the son of a poor mechanic.
A family drama involving a wife torn between her husband and her criminal ex-lover.
