Boris Karloff is the famous sleuth Mr. Wong on the trail of a murderer in this mystery classic from Monogram.
Director: William Nigh
Producer: Art Edwards
Producer: Chris Smith
Producer: Craig Hoffman
Producer: William T. Lackey
Actor: Charles Trowbridge
Actor: Grant Withers
Actor: John Hamilton
Actor: Marjorie Reynolds
Actor: Boris Karloff
Actor: Craig Reynolds
Actor: Frank Puglia
Actor: I. Stanford Jolley
Actor: Jack Kennedy
Actor: Jason Robards Sr.
Actor: Lita Chevret
Actor: Richard Loo
Actor: Tristram Coffin