Horror Hospital (also known as Computer Killers) is a 1973 British science-fiction comedy-horror film directed by Antony Balch and starring Robin Askwith, Michael Gough, Dennis Price and Skip Martin.

Both are unaware that the health farm (i.e. "Horror Hospital") is a front for Dr. Storm and his lobotomy experiments that turn wayward hippies into his mindless zombie slaves.

The wheelchair-using doctor surrounds himself with an entourage that includes Judy's aunt, erstwhile brothel madam Olga, dwarf Frederick and numerous zombie biker thugs.

Shooting was done at Merton Park (mainly the pop group scene), Battersea Town Hall (which provided the interiors of Brittlehurst Manor) and Knebworth House.

In his autobiography, Askwith wrote "I don’t know what she put in the cake but I ended up with a twenty stone electrician Roy, sitting on my lap telling me he thought he was in love with me."

Horror Hospital also contains a pop music number, "Mark of Death", composed by Jason DeHavilland and performed by the group Mystic (James IV Boris, Alan "The River" Hudson, Simon Lust).