At spooky old Headstone Manor, eighteen guests are killed in one night in 1975. Ten years later, strange radioactive readings are being picked up in the region and several scientific investigators come to check the place out, led by the one-legged Dr Lukas Mandeville (Kenny Everett) and his assistant Dr Barbara Coyle (Pamela Stephenson).
The house is haunted by a moronic devil-worshipping coven and their exasperated leader: “The Sinister Man” (Vincent Price).
Also heading to the haunted manor are three more cars containing paranormal investigators: John Harrison (John Fortune) Sheila Finch (Sheila Steafel), Elliot Broome (Gareth Hunt), Stephen Wilson (Don Warrington) and American investigator Henry Noland (John Stephen Hill) and his attractive companion Deborah Kedding (Cleo Rocos).
The inept Satanists are determined to expel the equally incompetent psychic experts from the house by creating a fire to summon up the exultant one, but they only succeed in cremating their leader.
Former Saturday Night Live member Pamela Stephenson has a brief nude scene (prior to having sex with an invisible demon.)
Filmed entirely on location at Potters Bar in Hertfordshire, Bloodbath contains a high degree of ridiculous overacting by Everett whilst the rest of the supporting cast desperately attempt to salvage the film by playing it straight.
Only Vincent Price emerges with any credit as he joyously hams it up with a caricature of himself.
The script was written by Everett’s regular TV show writers Ray Cameron and Barry Cryer.
Dr Lukas Mandeville
Dr Barbara Coyle
John Stephen Hill
The Blind Man