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(en)
4.0
1958
1h24m
Horror
Science Fiction
Overview: 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.
Status: Released
Release date: July 7, 1958
Countries of origin: United Kingdom,