Corridors of Blood

Corridors of Blood is a 1958 horror film directed by Robert Day. The original music score was composed by Buxton Orr. The film was marketed with the tagline Tops in terror in the US where MGM released it as a double feature with Werewolf in a Girls Dormitory.

After the success of The Haunted Strangler, producer Richard Gordon looked at making a follow up with Boris Karloff. At one stage a colour remake of Dracula was discussed as was an adaptation of The Facts in the Case of M. Valdemar. Eventually producer John Scott discovered a screenplay by Jean Scott Rogers based on the early days of anesthesia, originally called Doctor from Seven Dials.The movie was made in 1958 but because of upheavals at MGM at the time was not released until 1962. ........

Source: Wikipedia