London, 1761. St. Mary's of Bethlehem, a sinister madhouse, is visited by wealthy people who enjoy watching the patients confined there as if they were caged animals. Nell Bowen, one of the visitors, is horrified by the deplorable living conditions of the unfortunate inhabitants of this godforsaken place, better known as Bedlam.
Boris Karloff
as George Sims
Anna Lee
as Nell Bowen
Billy House
as Lord Mortimer
Richard Fraser
as The Stonemason
Glen Vernon
as The Gilded Boy
Ian Wolfe
as Sidney Long
Jason Robards Sr.
as Oliver Todd
Leyland Hodgson
as 'That Devil' Wilkes
Joan Newton
as Dorothea the Dove
Elizabeth Russell
as Mistress Sims
Larry Wheat
as Podge (uncredited)
Skelton Knaggs
as Varney (uncredited)
