Sherlock Holmes: The Grey Lady (1937)
Jimmy Ward infiltrates a criminal gang, only to reveal at the last moment that he is, in fact, none other than an undercover Sherlock Holmes.
- Country : Germany
- Genre : Crime, Mystery
- Studio : Neue Film Erich Engels
- Director : Erich Engels
- Cast : Hermann Speelmans, Trude Marlen, Elisabeth Wendt, Edwin Jürgensen, Theo Shall, Ernst Karchow