The Man Who Changed His Mind is a classic 1936 science fiction horror film starring Boris Karloff and Anna Lee, directed by Robert Stevenson and was released in Great Britain by Gainsborough Pictures. The film was also known as The Brainsnatcher or The Man Who Lived Again.
Boris Karloff has developed a method of transferring not the brain but the incorporeal mind from one being to another.This film has all the right elements for a spooky movie ... mad scientist, crippled assistant, old dark house, beutiful innocent female and bizare experiments!
Watch below or at The Internet Archive.