There is the seed of a good campy horror movie here, and there are some genuinely humorous bits here and there. But the storyline is a mess, as if the writer was trying to cram in every element found in previously popular Price movies. At the end (which in itself contains a lot of unanswered questions), there were a lot of unexplained/unresolved stuff and characters left over. I have to wonder if there was some frantic rewriting or last minute editing during the production. There is some value of seeing both Price and Cushing here, though you should know that Cushing doesn't appear that much. I suspect that he was just hired for a few days of shooting, because from the looks of the movie, they didn't have a high budget.