The Man Who Changed His Mind is a classic 30's horror/sci-fi film and one Boris Karloff's best films. Dr. Laurence, a once-respectable scientist, begins to research the origin of the mind and the soul. The science community rejects him, and he risks losing everything for which he has worked. He begins to use his discoveries to save his research and further his own causes, thereby becoming... a Mad Scientist, almost unstoppable. A must see.