The baron of Santafusca, descended from a noble family, leads a dissipated life. To pay debts he is forced to sell his house. He tries to steal from the house of a very rich priest and, surprised during the theft, he kills the priest, and then throws the body in an abandoned well. He continues his life of revelries and luxury, until the remorse for the crime trigger a process of self-destruction. The nightmares of the baron, tormented by the only evidence left of the murder, the hat of the priest ,drags him into a daring and hallucinated series of ups and downs to the brink of insanity and jail.

A good husband returns home to find a man he had generously hosted, who is about to rape his wife. He lunges at him, but his wife stops him, offering him the child. The man then contents himself with chasing away the scoundrel, who - in response - shoots him with a pistol. A new fight between the two, the husband tries to disarm him, but, by turning his armed hand around, causes the other to shoot himself and kill himself. Tried and sentenced to life, the man, who is nicknamed Wolf from the famous painting of the dying wolf, will manage to escape and his revenge will be inexorable...