A doctor uses his unique medical knowledge to mastermind a lucrative life-insurance scam; in a rare film role, legendary thespian Gerald du Maurier stars as the Metropolitan Police Commissioner who sets out to uncover the secret of five empty coffins and catch the villainous swine responsible for such depravities.
| Actor | Role |
|---|---|
 Gerald du MaurierCommissioner Stanton | Commissioner Stanton |
 George CurzonDr. Charles Masters | Dr. Charles Masters |
 Grete NatzlerIrene Masters | Irene Masters |
| BBelle ChrystallMary Stanton | Mary Stanton |
 Leslie PerrinsJohn Freeman | John Freeman |
| FFrederick PeisleyKenneth Bailey | Kenneth Bailey |
 Wally PatchDetective Sergeant George | Detective Sergeant George |
 Henry VictorFloyd | Floyd |
| HHerbert CameronPaxton | Paxton |
 Paul GraetzPaston | Paston |