Testament Of Dr. Mabuse, The (1933) - A Small Blue DKW

The butler (Georg John), revealed as an eavesdropper, assists Dr. Kramm (Theodor Loos), off to pursue his new theory of the crimes, as hit men (Rudolf Schundler, Oskar Hocker) from the title character's crew, are deployed, slick action in Fritz Lang's The Testament Of Dr. Mabuse, 1933.