The second in the series of Mr. Wong features starring Boris Karloff finds wealthy gem-collector Brandon Edwards gaining possession of the largest star sapphire in the world, the ‘Eye of the Daughter of the Moon’, after it has been stolen in China. Edwards, at a party in his home, confides to Mr. Wong that his life is in danger. During a game of Charades, Edwards is mysteriously shot dead and the gem disappears. Unknown to Wong, the jewel is in the possession of Edwards’ maid, Drina, who intends to return it to China, but she is murdered also, and the gem is taken again. After one more murder — the suspect list is dwindling — Wong exposes the killer, turns him over to Police Inspector Street, and Wong departs to return the gem to China.

Mystery