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.
as Alan Brooks
as Sarah Pilgrim
as Anne Pilgrim
as Philip Truscott
as Prof. Crevett
as Mayor Klein
as Hans
as Brett
as Dewhurst
as Wilde
as First Villager
as Second Villager
as First Student Climber
as Second Student Climber
as Carl
as Fritz
as The Mother
as The Child
as The Spotter Pilot
as Voice of Beheaded Climber Jim
as Evacuated Villager (uncredited)
as Evacuating Villager (uncredited)
as Evacuated Villager (uncredited)
as Stationmaster (uncredited)
as Evacuated Villager (uncredited)
as Mountain Rescue Stretcher Bearer (uncredited)
