Horror parody that mixes England's "carry on" style of humor with a standard horror plot. Some paranormal researchers go to "Headstone Manor" to investigate a series of occult related murders. Third-billed guest star Vincent Price has a minor role as the head of the Satanic cult. One man is flushed down a toilet, plus there's death by mole (not the animal), a killer teddy bear and an amusingly overdone opening sequence (count the dead bodies). I've seen this, but it was too long ago to write a detailed review for it so I'll try to give it a rewatch sometime.
Score: Needs a rewatch.