Based on the novel by Edgar Wallace, detectives at Scotland Yard try and track down The Crimson Circle, a secret society of blackmailers
as Felix Marl
as Derek Yale
as Insp. Parr
as Jack Beardmore
as Sylvia Hammond
as Sgt. Webster
as James Beardmore
as Brabazon
as Millie Macroy
as Lawrence Fuller
as Commissioner
