This piece has stuck with me since I saw it as a child in about 1960. Our family enjoyed horror films, and we always thought that this one was memorable. Seeing it again recently, I haven't changed my mind. Given the effects available at the time and the creepiness factor, I've always though this was one of the better of the older horror movies around.
It is quaint, British, and builds slowly after the initial shock. Some comments say it was boring, shouldn't have shown the creature, Dana Andrews was drunk and sucked, etc. It isn't perfect, but like "The Haunting" and a few others made around that time, it succeeds well in creating an unsettling and generally engaging mood, including some humor, on a very small budget. I still think that the creature F/X was excellent for its time. I can imagine the film without seeing the creature, and maybe that would have been even more effective, again like "The Haunting".
I give it "A-" for effort and execution, and for avid horror buffs, it's definitely worth a watch or two. I've tested this one out with some younger folks, and they seem to really like it. Even a jaded younger horror fan used to blatant gore and in your face monsters said, "That creeped me out." FYI, the "Night" vs. "Curse" versions are different by several minutes of extra footage, which I recall was the séance scene and some connective dialog.
