The Crimson Stain Mystery

Directed by T. Hayes Hunter

Written by Albert Payson Terhune

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.

Cast

Maurice Costello

Harold Stanley

Ethel Grandin

Florence Montrose

?

Thomas J. McGrane

Dr. Burton Montrose

?

Olga Olonova

Vanya Tosca

?

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