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.
Genre: Horror, Mystery
Starring: Dana Andrews, Peggy Cummins, Niall MacGinnis, Athene Seyler, Liam Redmond
Directed & Produced by: Charles Bennett, Ken Adam, Jacques Tourneur, George Blackwell, Robert Lennard
Release date: 11/9/1957
Running time: 96 minutes
IMDb Rating: 7.2/10 by 102 users