Into the fabulous realm of sixteenth-century Mexico comes Alfonso Martinez a Spanish alchemist searching for the legendary Aztec gold. With him is the silver skull of Don Sebastian de Vilanueva - wizard, vampire, explorer of earths dark mysteries. Then the skull falls into the hands of a virgin priestess the sensuous leader of an Aztec cult. And in awesome scenes of occult ritual and bloody human sacrifice, Don Sebastian is brought back to life. So begins and unholy alliance as vampire and priestess join forces, summoning all the dread powers of evil at their command.