Basically "Before I Hang" is very simplistic and inconspicuous thriller story, but it is almost evidently brought to a much higher level solely thanks to the always-reliable performance and natural class of the iconic Boris Karloff. I wrote it before and I'll write it forevermore in my reviews: this man was simply amazing! With is moody voice, he could narrate the content of a phone book for all I care, because I would still hang on his lips. His charm and charisma make every movie atmospheric and his grimaces when he transforms from a seemingly gentle elderly person into a cold-blooded murderer (as masterfully demonstrated a couple of times in "Before I Hang") are utmost petrifying! Mr. Karloff truly was – and still is – horror personified! So, that concludes my ode to this brilliant actor, and on to the film itself. "Before I Hang" is actually another loose interpretation of the classic novel "Les Mains d'Orlac" by Maurice Renard. The novel first got turned into a film in 1924 already, in the German expressionist masterpiece "Orlacs Hände" starring Conrad Veidt, and several more times since, including two films starring Peter Lorre ("Mad Love", "The Beast with Five Fingers") and another one starring Christopher Lee in 1960 ("The Hands of Orlac"). Although the source material isn't specifically credited here, it's clear that Renard's novel also provides the basic plot idea. The movie opens with a beautiful and long Boris Karloff plea in court. He's physician Dr. John Garth, sentenced to death by hanging because he attempted to cure a man but failed. Awaiting his execution, Dr. Garth continues his experiments with the consent of the prison director and the help of the resident doctor, and he uses himself as guinea pig when he injects the serum into his own veins. Dr. Garth's execution gets overruled after all, but he begins to notice that the serum rejuvenates him. Unfortunately, however, he used the blood of a convicted murderer to finalize his serum and this bad blood is now slowly turning him into a merciless strangler as well. Classic Karloff material, in other words, with numerous fantastic monologues and a handful of eerie moments. Short (barely 60 minutes), intense and to the point; where would (mad) science be without Boris Karloff?

I don't know how many movies -- most of them pretty poor -- have been made about anatomical transplants causing the recipient to ape the deranged behavior of the donor. Maybe the most amusing is Mel Brooks' "Young Frankenstein", when Igor rushes to get the transplant from the laboratory, drops the good one, and substitutes a brain labeled A. B. Normal. ("Abnormal," get it?) There's a movie circulating on cable TV now about a baboon heart, and I remember Michael Caine got a murderous black hand a few years ago.In this instance, Boris Karloff is a doctor convicted of a mercy killing and sentenced to hang. He's been working on an anti-death serum and, while in prison, is permitted to continue his research alongside the prison's doctor, Edward Van Sloan.He undertakes an experiment that results in the kind of evidence that investigators refer to as "self report." That is, he injects himself with serum based on tinkering with the blood of a murderer. Well, let's not laugh too hard. That's how the Swiss chemist Albert Hoffman discovered LSD.The problem is that the serum works in the sense that it regresses the ancient Doctor Karloff to the age of about forty, but since the original blood sample was drawn from a murderer, the desire to kill has also been transferred. You can always tell when one of his irrational impulses are coming on because he rubs the back of his neck. Before he collapses, Karloff is able to strangle Van Sloan in private. The murder is blamed on someone else and Karloff is released from prison for his contribution to medical research.Now he's out in the open, back in society, and he wants to experiment on his close old friends, including Pedro de Cordoba as a pianist whose age has slowed down the tempo of his Chopin. De Cordoba sees Karloff alone and agrees to the injection but Karloff kills him instead.And so on.This seems to be regarded as a horror film by some. I don't know why. It's more of a drama. Karloff gives a very sympathetic performance. He's particularly endearing as the ancient practitioner, bent and kyphotic, who is convicted and sentenced to death for putting an old acquaintance out of his intractable pain after months of treating him.Evelyn Keyes doesn't have much to do, but what little she does is critical.There's little violence, no blood, and nothing supernatural. It's a relatively quiet movie about a man who finds that, now and then, he can't help himself. Doctor Jeykll had the same problem, didn't he? It wouldn't be surprising if the writers hadn't begun their story with the kernel of Stevenson's in mind.

The film begins with a kindly doctor (Boris Karloff) being sentenced for performing a mercy killing. He is given the death penalty and the sentenced is to be carried out in one month (wow--things sure went fast in the good old days). In the meantime, however, the warden of the prison allows the Doctor to continue his experiments regarding prolonging human life, as the work seems important and not everyone is as tough on the Doc as the judge.During this one month period, a breakthrough occurs with Karloff's research. And, in an effort to test the formula, Karloff insists that the other doctor inject him with the formula. The experiment is a success and Karloff now looks and feels much younger and healthier--and as luck has it, the death sentence is commuted, so Karloff can continue working in the prison laboratory. However, slowly the changes that occur in the one-kindly man are unanticipated...and not particularly pleasant to say the least. Why did he change and what happens next? Well, see the film for yourself, as I'd hate to spoil the suspense--though the why is a tad silly.Overall, a novel idea for a film that is well worth seeing. Karloff fans will have a ball, but non-fans also might enjoy this interesting little B-movie. I particularly liked it because I enjoyed seeing Karloff play such a likable guy--at least until the injection.

Boris Karloff played the benign "mad" scientist whose intentions were good but turn awry better than anyone else. Most of his mad scientists were men put into bad situations by some kind of catalyst beyond their control and Before I Hang is no exception. Karloff plays a doctor brought before a jury for a mercy killing - a man who had been living in terminal pain sought out Karloff's help with hopes that a youth age-suppressing serum he had been working on would help regulate the pain and off-set the aging process. It didn't work and Karloff aided in his assisted death. Karloff is sent to prison but finds that the warden believes in his work and allows him, with the aid of Edward Von Sloan the prison doctor, to work on his serum just weeks before he is to be hanged for his crime. Before I Hang has really quite a preposterous storyline but Boris Karloff breathes life into it rather nicely with a gentle performance edged by a maniacal turn as he injects himself with the serum that has some bad side effects. The other actors are all very good with old Karloff nemesis from Frankenstien Von Sloan doing very well with his rather small, thankless role and Eugene Palette giving a good turn as the warden. Karloff's three old friends are all well-played and Evelyn Keyes as his daughter adequate as is Bruce Bennet as her love interest and Karloff's former assistant. The movie is not particularly fast-paced but the tension does build increasingly with effect. Before I Hang is a rather nice addition to Karloff's Columbia Mad Doctor roles. Perhaps not the best of them but certainly stands strong with the rest of them.