Dr. Karl Decker(J. Carrol Naish)is a well known and respected optometrist with an office on a San Francisco waterfront. It is not common knowledge that he is a front man for a cell of the Third Reich. A henchman named Marlow(John Carradine)is to arrive from Germany and collect a code book full of top-secret information; but Decker is mugged and is robbed of the little black book. An upset Marlow makes the rounds visiting possible German Americans, who may have the book. It is not above him to use terror tactics on those with relatives in concentration camps. The cast also includes: Maris Wixon, Edwin Maxwell, John Bleifer, and Olga Fabian.
Review of Waterfront
