Dr. John Garth (Boris Karloff) is convicted of a mercy killing and sentenced to hang. With the time he has left, he is allowed to continue his experiments in prison. He creates a serum that reverses aging and tries it out on himself. But side effects of the serum turn him into a homicidal maniac. Karloff is terrific in a role very similar to many others he had played before and always perfectly. He was so good at creating sympathetic performances out of characters that other actors would have played in broad strokes. Nice supporting cast that includes the always good Edward Van Sloan, Evelyn Keyes, Bruce Bennett, Don Beddoe, and the underrated Pedro de Cordoba. You might not recognize some of those names but it's a solid cast for a 'B' picture. Not the best of Karloff's mad scientist films but highly enjoyable anyway. Definitely give it a shot.
Review of Before I Hang
