In attempting to develop a chemical which would make a person super-intelligent, Dr. Montrose fails and the subjects of his experiments metamorphose into hideous monsters who band together and prey on humans. With the police stymied, a young detective attempts to track down the leader of the group of killers, known only to have a small crimson stain in one eye.
The Crimson Stain Mystery (1916) is currently not available on any services.
Maurice Costello , Ethel Grandin , John A. Milton , Eugene Strong , Lorna Volare
T. Hayes Hunter
Erbograph Co.
