Zombie Holocaust

Peter Chandler and Dr. Lori Ridgeway, in an effort to expose a flesh-eating cult in New York City, set out on an expedition to the primitive island of Keto. The two are soon trapped in the wilderness, surrounded by a tribe of murderous cannibals and an insane scientist, Dr. Obrero. While the made doctor experiments on Chandler, Lori is captured by the tribe and made the subject of their bizarre rituals. (official distributor synopsis)