The Man Who Changed His Mind
Boris Karloff gives a brilliant performance as mad scientist Dr. Laurience, a once-respected researcher of the mind and soul who goes off the deep end when the scientific community rejects his work.  He uses his invention to first exact revenge on his enemies, then tries using it to win the heart of his delightful assistant, played by British ingénue Anna Lee.  It’s classic Karloff in this unforgettable early horror film.