Eyes of Fire (1983)

Reverend Will Smythe and his followers are chased out of town after he is accused of adultery and polygamy. Joined by rugged woodsman Marion Dalton, who wants to protect his daughter, the group ventures into a valley, where dwells an ancient evil spirit. As members of the group start to disappear, the witch-bred, insane Leah must discover how to thwart the spirit.