This 1957 film is loosely based on M.R. James’s 1911 short story, Casting the Runes–a story about a warlock who sics a demon on his enemies by secretly passing them a slip of paper with a runic curse on it. The only way his victims can escape a horrible fate is by giving the runes back to him without him knowing it, so that the curse rebounds back on the caster. Although the plot and characters are altered from those in James’s story, this version is generally considered one of the best films adapted from his work, and one of the best horror films of its era.
It’s a British film with a mostly British cast, but with an American star to draw a U.S. audience, which was a common practice at the time. It was released in the UK under the title Night of the Demon and in the US as Curse of the Demon.
The DVD has both versions of this film on it: the 95-minute original UK version and the US release, which is about 10 minutes shorter. The order of the scenes are slightly rearranged in the US version, and two full scenes plus some other little bits here and there are removed.
Both versions of the film begin with shots of Stonehenge back when it stood alone on Salisbury Plain and wasn’t surrounded by wire fences, visitor parking lots, and gift shops. A solemn narrator tells the viewer:
“It has been written since the beginning of time, even unto these ancient stones, that evil, supernatural creatures exist in a world of darkness. It is also said that Man, using the magic power of the ancient runic symbols, can call forth these powers of darkness–the demons of Hell.”