Maria Clara Zurita

A gang of bikers wrecks havoc.

Dave Boland (Carlos East) wears a strange medallion and robs the bank. He also takes the banker's daughter with him. Then he rapes her and put the satanic mark on her body. He was caught and was prepared for hanging. At moment before hanging Dave uses his supernatural power and makes a local shoe-shiner his accomplice. While running from sheriff Dave was injured and after some time dies. But before his death Dave gives this medallion to shoe-shiner Oscar and asks him to take revenge in the name of Satan. So he does it and also continue to rape and kill women never forgetting to leave satanic mark on their bodies...

Isabel is abandoned at the door of an orphanage a few days after birth. There she grows between the jokes of the other girls and the mistreatment of the harsh director called "Justa." One day her classmates show her a false birth certificate where it says that her father's name is Jesús García, that he is alive and resides in Mexico City, so she, with the hope of having a family, escapes from the orphanage towards Mexico City to look for her supposed father.