Film inspired on the character from "Don Juan Tenorio".

The death of Sebastian's father engenders in him pathological fears and hallucinations. His death wishes seem to cause horrible accidents, which he is unable to control. When his older brother dies, he feels that he has caused it. He undergoes hypnosis, but his apparent supernatural powers continue. As his own life nears its end, he becomes even more violent and sadistic.

Master gunslinger Sabata arrives in Hobsonville, a town completely owned by McIntock, a robber baron who is taxing the inhabitants for the cost of future improvements to the town. Or that's what McIntock says he'll do with the money...