Summary
American professor John Holden arrives in London for a conference on parapsychology only to discover that the colleague he was supposed to meet was killed in a freak accident the day before. It turns out that the deceased had been investigating a cult lead by Dr. Julian Karswell. Though a skeptic, Holden is suspicious of the devil-worshiping Karswell. Following a trail of mysterious manuscripts, Holden enters a world that makes him question his faith in science.
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Cast
Dana Andrews
Dr. John Holden
Peggy Cummins
Joanna Harrington
Niall MacGinnis
Dr. Julian Karswell
Maurice Denham
Professor Henry Harrington
Athene Seyler
Mrs. Karswell
Liam Redmond
Professor Mark O'Brien
Reginald Beckwith
Mr. Meek
Ewan Roberts
Lloyd Williamson
Rosamund Greenwood
Mrs. Meek
Brian Wilde
Rand Hobart
Richard Leech
Inspector Mottrarn
Lloyd Lamble
Detective Simmons
Charles Lloyd Pack
Chemist
John Salew
Librarian
Percy Herbert
Farmer
John Harvey
Hobart's Brother
Ballard Berkeley
Wallace Bosco
Michael Peake