Hans Albers, Heinz Rühmann, Marieluise Claudius, Hansi Knoteck, Günther Ballier, Ernst Behmer, Paul Bildt, Harry Hardt, Ernst Waldow, Eduard von Winterstein, Erich Dunskus, Hilde Weissner, Ernst Legal, Siegfried Schürenberg, F. W. Schröder-Schrom
Two dubious characters disguise themselves as Holmes and Watson to gain attention and end up chasing counterfeiters and stolen stamps.