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.
Maurice Costello
Harold Stanley
Ethel Grandin
Florence Montrose
Thomas J. McGrane
Dr. Burton Montrose
Olga Olonova
Vanya Tosca
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August 21, 1916
5h 55m
0.0
T. Hayes Hunter
Albert Payson Terhune
0
Erbograph Co.
N/A
William Cavanaugh
Doctor's Assistant
John A. Milton
Layton Parrish (as John Milton)
N.J. Thompson
Jim Tanner
Eugene Strong
Robert Clayton
Lorna Volare
Little girl
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