Produced and directed by the prestigious Frank Lloyd, The Shanghai Story was promoted as a "class" production by the bread-and-butter firm of Republic Pictures. The film takes place in the eponymous far-eastern metropolis (courtesy of the Republic backlot), where Communist police chief Colonel Zorek (Marvin Miller) hopes to trap an American spy. Zorek rounds up the usual suspects and sequesters them in a seedy hotel. Could the spy be Dan Maynard (Edmond O'Brien), a cynical doctor? Is it munitions profiteer Ricki Dolmine (Barry Kelley)? Perhaps it's two-fisted mercenary seaman Knuckles Greer (Richard Jaeckel). Orrrrrrr, maybe it's the mysterious Rita King (Ruth Roman), who is inexplicably given permission to come and go as she pleases by the otherwise intractable Zorek. True to form, this Republic A-picture resolves its problems with a final reel of good old B-flick action and violence.