
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)