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.
Directed by: Quentin Lawrence
Cast: Forrest Tucker, Jennifer Jayne, Janet Munro, Laurence Payne, Warren Mitchell, Frederick Schiller, Colin Douglas, Andrew Faulds, Stuart Saunders, Derek Sydney, Richard Golding, George Herbert
Genres: Dark Fantasy, Horror, Mystery, Sci-Fi
Rating: 5/10