A psychiatric doctor driven to insanity by nightmare visions of Zé do Caixão trying to steal his wife is helped by colleagues who enlist creator José Mojica Marins to convince the patient that he does not exist.

Prostitute is impregnated by a wealthy businessman. Identical twins are born: Márcio created by the father and the mother another. The latter becomes a marginal, while the first, with the death of his father, inherits fortune incalculable. Upon learning of fortune inherited by his brother, the marginal killer, and takes its place in business. Everything goes well until an employee discovers the drama.

Dr. George Medeiros, a brilliant scientist, is badly disfigured when his wife takes a lover and plans to murder him. After months in the hospital, he returns with nothing in mind but revenge.