Earle Williams, known for his manly, often dignified, characters, was well cast in this mystery, which keeps the audience guessing until the very end. Someone in India is deciphering secret codes and passing information from London's Downing Street to the natives, so Captain Robert Kent (Williams) comes down from London to investigate. He disguises himself as a Rajah, and Colonel Wentworth (Charles Hill Mailes) introduces him to the colony.