The Crimson Stain Mystery
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.
Elenco
| Actor | Rol |
|---|---|
| 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 |
Tripulación
| Rol | Nombre |
|---|---|
| Writer | Albert Payson Terhune |
| Director | T. Hayes Hunter |