Considering its age (almost 65 years old), this movie has held up reasonably well. Granted, it is a bit slow and dull (it runs only 69 minutes but it feels MUCH longer), and Boris Karloff is not convincing, of course, as an Oriental. However, he does capture the Oriental philosophy of his character, and the plotting itself (particularly the killing method) is ingenious, worthy of a fine crime novel. (**1/2)