Directed by Quentin Lawrence | Starring: Forrest Tucker, Jennifer Jayne, Janet Munro, Laurence Payne

A United Nations investigator crosses paths with a pair of psychic sisters on his way to Trollenberg observatory in the Swiss Alps, which has been plagued by a series of mountaineer disappearances that may be related to a radioactive cloud at the mountain's south face.

IMDb The Trollenberg Terr... movie posters