Summary In Macao, a pawnbroker finds a hunched-over woman draped in black rifling a display case full of costume jewelry. She kills him. The nervous Mr. Qoit of Great Eastern Underwriters hires Smith on another case. He wants Smith to recover the Manchu Necklace, thirty emeralds set in gold, stolen from the touring actress Kate Orleans. Smith finds that Kate is conducting her own search. He also finds that much of the Macao underworld believes he masterminded the theft. He thinks he might find the real thief by offering to buy the necklace. Kate's disappointed lover Franz believes the rumor and visits Smith with a gun--he ruined himself to buy the necklace for Kate. Qoit believes the rumor too and swears out a warrant for Smith. Meanwhile, the only trace of the necklace is the loose emerald Smith found mixed with the costume jewelry in the pawnbroker's shop.

• Action
• Adventure
• Drama