In 1661, Baron Vitellius of Astra, Mexico, was sentenced to burn alive by the Mexican Inquisition for witchcraft, witchcraft and other crimes. After his death, the baron vowed to avenge the prosecutor's descendants. 300 years later, a comet that flew overhead on the night of the Baron's execution returned to the earth, and brought the Baron to the earth in the form of a terrible brain-eating monster, which threatened the descendants of the prosecutor.