Horror Hospital

Produced in 1973. Directed by Antony Balch. Starring Michael Gough, Robin Ask, Vanessa Shaw. A pair of friends on a british rail trip soon find themselves in a secluded mansion with a slew of bizarre characters and an even more bizarre secret.

Robin Askwith (just prior to his shift into a sex comedy franchise) is a stressed out singer with a pop group. He decides to go for some R&R at a country retreat. He hooks up with Vanessa Shaw on the train journey in, and once they arrive at the retreat they find it's a bizarro world inhabited by mute bikers, lobotomised robots, a malignant dwarf and a mad doctor (Michael Gough) in a wheelchair!