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.

• DirectorQuentin Lawrence
• Release7 July 1958
• Genre
  Horror / Science Fiction
• Duration1h 24m
• Budget?
• Revenue?
• Rate
  

  4.7
  95 reviews
• Productions

  Tempean Films