In 19th century England, a noted brain surgeon rescues a former student from being hanged on a false conviction for murder, and spirits him away to an ancient, repurposed abbey far in the countryside. There, he connives his pupil into assisting him in mapping the functions of the various parts of the human brain, using living subjects who are under a terrible animation-suspending drug called "black sleep". Subsequently, the student, along with the daughter of one of the subjects, discover that most of these subjects have survived but are being kept in a dungeon-like cellar, in various stages of physical and mental derangement...
as Sir Joel Cadman
as Dr. Gordon Ramsay
as Laurie Munroe
as Odo the Gypsy
as Daphne
as Dr. Munroe, aka Mungo
as Casimir
as Bohemund
as Sailor-Subject
as Mr. Curry
as Female Subject
as Sgt. Steele
as Carmona Daly
as Roundsman Blevins (uncredited)
as Angelina Cadman
as Prison Coroner's Clerk (uncredited)
as Det. Redford (uncredited)
