An anthropologist named Cathy travels to Bali with her lover to conduct research on black magic. There, they encounter the queen of the Leák cult, a shapeshifting witch who feasts on blood and soon makes Cathy carry out her evil deeds.
Barry Prima plays Jaka Sembung, a Robin Hood figure who possesses mystical powers. Captured, tortured and left for dead, he returns even more powerful than before. In desperation the invaders resurrect an evil wizard and set him against Jaka Sembung in a fierce fight to the death.
