Yahoo Web Search

Gwen Mayfield (Joan Fontaine) suffers a mental collapse after a showdown with a witch doctor while performing missionary work in Africa. Once she recuperates, she starts teaching at a private school in England and gets to know Linda (Ingrid Brett), one of her students. Linda's boyfriend claims that there is a cult that is going to sacrifice her, and Gwen begins to investigate the wild rumors. This leads her to a confrontation with powerful cult leader Stephanie Bax (Kay Walsh). Wikipedia