Blackie is seen leaving a Chinese laundry where the proprietor has been murdered, and must track down the real killer in Chinatown.
Horatio 'Boston Blackie' Black
Mei Ling
Red, the Bar-Girl
Les, the Bus Guide
Inspector William R. Farraday
The Runt
Sergeant Matthews
Pop Gerard
Bill Craddock (as Louis Van Rooten)
Wong Chung Shee
Ah Hing
Rolfe
Mac
Officer Jim
Reiber
