The Mystery of Mr. Wong

Art collector Brandon Edwards (Morgan Wallace) is murdered shortly after smuggling a precious jewel out of China, despite a warning that whoever takes it will die. At the party where he's shot, Edwards manages to tell visiting detective Wong (Boris Karloff) the location of a note he wrote earlier, naming a suspect should he be harmed. Initially suspected is Edwards' secretary, Peter (Craig Reynolds), who Wong discovers is in love with Edwards' equally suspicious wife, Valerie (Dorothy Tree).