Wizard's Curse (1992)

A Taoist wizard goes to Thailand to help defeat a pair of black magic criminals using huge Taoist charms and the good, old-fashioned blood of a black dog. Afterwards, "a fiendish wizard" steals the bodies of the two criminals. He anoints them with the sperm of 99 satyrs and the blood collected from the menstrual flow of 99 bitches. The result is the merging of the two bodies into one ultra-powerful, bisexual creature known as the Terrific Vampire. This lustful monster gains knowledge and strength by killing and devouring the brains of victims.