Evil does not die... It waits... To be reborn...

What surgeons thought to be a tumor growing on the neck of patient Karen Tandy (Susan Strasberg of Psych-Out) is actually a fetus growing at an abnormally accelerated rate. But when Karen reaches out to former lover and phony psychic Harry Erskine (Academy Award® nominee Tony Curtis), he discovers that she is possessed by the reincarnation of a 400-year old Native American demon. Now with the help of a modern-day medicine man (Michael Ansara), Erskine must survive this ancient evil's rampage of shocking violence, and forever destroy the enraged beast known as The Manitou.

Stella Stevens, Ann Southern and Burgess Meredith co-star in this infamous horror shocker produced and directed by William Girdler (Grizzly, Day Of The Animals) from the best-selling novel by Graham Masterton.