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.
Verdict: Unknown
> Jacques Tourneur (Director)
> Peter Glazier (Assistant Art Director)
> Edward Scaife (Director of Photography)
> Basil Keys (Assistant Director)
> Muir Mathieson (Music Director)
> Hal E. Chester (Screenplay)
> Charles Bennett (Screenplay)
> M.R. James (Short Story)