Corridors of Blood (aka Doctor from Seven Dials)[3] is a 1958 British-American period drama film directed by Robert Day and starring Boris Karloff and Christopher Lee.

While doing so, his demonstration before a panel of his peers ends in a horrific mishap with his patient awakening under the knife; he is forced to leave his position in disgrace.

To complicate matters, he becomes addicted to the gases and gets involved with a gang of criminals, led by Black Ben and his henchman Resurrection Joe.

The key ingredient in Bolton's experiments is opium, which one evening causes him to wander into The Seven Dials tavern in a haze and leave his scientific notebook behind.

[3] Executive producer Richard Gordon and interviewer Tom Weaver talk about the making of Corridors of Blood on the audio commentary of the Criterion DVD, available as part of the 2007 set Monsters and Madmen.

Robert Day's direction, considering the cheapness of the production, is resourceful and atmospheric, with nice use of chiaroscuro; the acting is generally above average.