The depletion of the earth's ozone layer causes animals above the altitude of 5000 feet to run amok, which is very unfortunate for a group of hikers who get dropped off up there by helicopter just before the quarantine is announced.
▶ Watch TrailerNo streaming sources found for this title.
🔍 Search on JustWatch →The director builds tension not through shock, but through feeling — the viewer senses something is wrong long before it becomes obvious. Atmosphere matters more than any plot twist.
This isn't a film for the faint-hearted, nor for seasoned viewers who claim to fear nothing. It exists somewhere between — pressing psychologically rather than physically.
Ideal for fans of psychological horror. Slasher fans should look elsewhere.
Director: William Girdler
— MovieFinder Editorial
Best Watched
Viewing atmosphere: Late in the evening, with two people. Make tea, put away the phone, don't turn on the lights.
Christopher George
Steve Buckner
Leslie Nielsen
Paul Jenson
Lynda Day George
Terry Marsh
Richard Jaeckel
Prof. Taylor MacGregor
Michael Ansara
Daniel Santee
Ruth Roman
Mrs. Shirley Goodwyn
Jon Cedar
Frank Young
Paul Mantee
Roy Moore
Walter Barnes
Ranger Tucker
Andrew Stevens
Bob Denning
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