This obscure little movie is a delightful surprise for film buffs. The surprise is Boris Karloff in the role of the well mannered oriental detective. Yes, this is the same Boris Karloff who was Frankenstein the monster! He manages the role as if it were a well worn and comfortable pair of houseshoes, and it becomes unimportant, quickly forgotten and insignificant that a nonoriental is Mr. Wong.
A business man gets involved with a deal involving poison gas. When he is inexplicably found dead in his office under suspicious circumstances, Detective Street (Grant Withers) is called in on the case. The sharp tongued detective Street looks for the blatant and obvious clues, while he often misses what is going on beneath the surface in this mysterious case. Mr. Wong, a well known detective who was acquainted with the victim, begins to notice clues that Detective Street overlooks. The body count begins to mount as the partners of the dead business man also begin to die under strange circumstances. Mr. Wong must keep his mind open in this thriller when the obvious suspect first seems guilty, then innocent as other suspects turn up including a sinister Baron and a Countess. Maxine Jennings is great as Detective Streets lady friend, Myra. Snappy dialogue and good actors move the story along at a good clip. There are a couple of scenes that are shot in poor lighting, but they don't hinder this very good entry in the 1930's detective genre of movies.
This will be an entertaining movie for film buffs. I give it an 8/10.