Probably somewhat mistitled to sell movie tickets, this is really not a horror film. Karloff plays Dr. Thomas Bolton, a 19th century surgeon at a time before anesthesia, who is renowned for his speed and accuracy. This is needed as the patient must be strapped down and is screaming the entire time the operation is in progress.
Bolton wants to come up with a drug that will allow painless surgery, but his colleagues seem unmoved by the patients' pain, and even say weird puritanical things like the pain is necessary for healing. In a parallel plot, a group of blackguards who inhabit a filthy bawdy pub in a poor part of London have discovered that smothering very drunk people who will not be missed and selling their bodies to doctors is an easy way to make good money.
So, going it alone, Bolton concocts a potion that he thinks might work, trying it out on himself as he tweaks the formula. While he is under the influence of this potion he is in a dream like state, and when he regains full consciousness he feels that whatever he did was a dream. What he doesn't realize until it is too late is that he is becoming addicted to these drugs - it effects his mind and hands to the point where he is a danger in the operating room. The hospital suspends him, and cuts off his supply of drugs. This is where the doctor and the murderers find they can help each other out. Bolton HATES what he is doing - signing off on death certificates of murder victims saying they died of natural causes in return for the criminal gang stealing drugs for him- but his addiction is ruling him as it rules all addicts.
This is satisfying if you know what you are getting yourself into. It's how the noble pursuit of a humane physician goes completely awry. If you are literally looking for corridors of blood you will be disappointed. And apparently that was what happened when this film was released four years after its production, in 1962 on a B horror double bill. Made by MGM when it was in its downward spiral, for some reason it is not in the Turner Classic Movies library.
Bolton wants to come up with a drug that will allow painless surgery, but his colleagues seem unmoved by the patients' pain, and even say weird puritanical things like the pain is necessary for healing. In a parallel plot, a group of blackguards who inhabit a filthy bawdy pub in a poor part of London have discovered that smothering very drunk people who will not be missed and selling their bodies to doctors is an easy way to make good money.
So, going it alone, Bolton concocts a potion that he thinks might work, trying it out on himself as he tweaks the formula. While he is under the influence of this potion he is in a dream like state, and when he regains full consciousness he feels that whatever he did was a dream. What he doesn't realize until it is too late is that he is becoming addicted to these drugs - it effects his mind and hands to the point where he is a danger in the operating room. The hospital suspends him, and cuts off his supply of drugs. This is where the doctor and the murderers find they can help each other out. Bolton HATES what he is doing - signing off on death certificates of murder victims saying they died of natural causes in return for the criminal gang stealing drugs for him- but his addiction is ruling him as it rules all addicts.
This is satisfying if you know what you are getting yourself into. It's how the noble pursuit of a humane physician goes completely awry. If you are literally looking for corridors of blood you will be disappointed. And apparently that was what happened when this film was released four years after its production, in 1962 on a B horror double bill. Made by MGM when it was in its downward spiral, for some reason it is not in the Turner Classic Movies library.