A series of brutal murders, the police on their toes, but they can not find a way to catch the sadistic murderer. A mad doctor experiments with ways to cheat death and confuse his pursuers with the help of a corpse identical DNA to his own. His young female victims are raped and brutally murdered with a knife. In the victims' fingernails will find the police traces of rotted human flesh.

A Spanish army officer, Don Jose, stationed in Seville, meets and begins a relationship with a mysterious gypsy, Carmen. After he discovers she has cheated on him with his Lieutenant, he kills the officer and flees the city with Carmen. He recovers from his wounds and is forced to begin the life of a bandit.