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 The film was originally made in 1967 by Dennis Muren as The Equinox: Journey into the Supernatural.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.
Edward Connell
as David Fielding (as Skip Shimer)
Barbara Hewitt
as Susan Turner
Jack Woods
as Asmodeus
Frank Bonner
as Jim Hudson (as Frank Boers Jr.)
Robin Christopher
as Vicki (as Robin Snider)
James Phillips
as Reporter Sloan (as Jim Phillips)
Fritz Leiber Jr.
as Dr. Arthur Watermann (as Fritz Leiber)
Patrick Burke
as Doctor Branson
Sharon Gray
as Nurse
Louis Clayton
as Old man in cave
Norvelle Brooks
as
Irving L. Lichtenstein
as
