If you dig in the heap of “Awful Movies That Are Still Fun to Watch”, you will undoubtedly come across The Brain that Wouldn’t Die (1962). It’s about a doctor whose radical ideas on transplants has him on the outs with the medical establishment. He gets the chance to Show Them All! When his girlfriend is decapitated in an accident. Fortunately, he manages to keep her head alive – now all he needs is a body to graft it to.
Weird idea, but not one that’s unusual. In competent hands, and with some resources given to it, one just might be able to create a passable movie on that premise.
Frank Henenlotter wrote that he came up with the idea for Frankenhooker out of thin air when his pitch for another movie failed. But the similarities between the two movies are too strong for it to have been a mere coincidence. Perhaps he saw the older movie and vaguely remembered the plot, or perhaps he knew that “Brain” was in the public domain, so he was free to riff on it to his heart’s content.
Anyway…..