Night of the Demon (1957)

[wibomps]

Night of the Demon (1957)
(Curse of the Demon in USA)

"Dr. John Holden ventures to London to attend a paranormal psychology
symposium with the intention to expose devil cult leader, Julian
Karswell. Holden is a skeptic and does not believe in Karswell's
power. Nonetheless, he accepts an invitation to stay at Karswell's
estate, along with Joanna Harrington, niece of Holden's confidant who
was electrocuted in a bizarre automobile accident. Karswell secretly
slips a parchment into Holden's papers that might possibly be a death
curse. Recurring strange events finally strike fear into Holden, who
believes that his only hope is to pass the parchment back to Karswell
to break the demonic curse."

Precis by imdb.com

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