Due to their possession of an ancient mystic book, four friends are attacked by a demon while on a picnic and find themselves pitched into a world of evil that overlaps their own. The film was originally made in 1967 by Dennis Muren as The Equinox: Journey into the Supernatural. Jack Woods was hired to shoot additional footage and expand on Muren's work.

Directed by: Dennis Muren & Jack Woods
Written by: Jack Woods
Release date: 1970-10-01
Runtime: 82 minutes
Critics score:
Tagline: Occult Barrier Between Good and Evil
Cast:
Edward Connell Edward Connell
David Fielding (as Skip Shimer) 
Barbara Hewitt Barbara Hewitt
Susan Turner 
Jack Woods Jack Woods
Asmodeus 
Frank Bonner Frank Bonner
Jim Hudson (as Frank Boers Jr.) 
Robin Christopher Robin Christopher
Vicki (as Robin Snider) 
James Phillips James Phillips
Reporter Sloan (as Jim Phillips) 
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Also known as:
  • Harry Und Der Zauberring
  • Eine Reise ins Übernatürliche