Pietro Zastrozzi, an outlaw, and his two servants, Bernardo and Ugo, disguised in masks, abduct Verezzi from the inn near Munich where he lives and take him to a cavern hideout. Verezzi is locked in a room with an iron door. Chains are placed around his waist and limbs and he is attached to the wall. Verezzi is able to escape and to flee his abductors, and finally settles in Venice, but Zastrozzi is driven by the blind hatred and doesn't give up on ruining Verezzi's life.