The Mysterious Mister X

The Mysterious Mister X (German: Der geheimnisvolle Mister X) is a 1936 German comedy film directed by J.A. Hübler-Kahla and starring Ralph Arthur Roberts, Annemarie Steinsieck and Herti Kirchner.

The film's sets were designed by the art director Gustav A. Knauer and Alexander Mügge.

Synopsis
A British lord, fascinated by crime, spends his time collecting artefacts. He is thrilled when he receives mysterious letters warning that a thief plans to steal a valuable statue from his country house. His secretary persuades him to bring in her fiancée, a private detective, to investigate the case.

Cast

 * Ralph Arthur Roberts as Lord Wilford
 * Mady Rahl as Nelly Taylor, Sekretärin
 * Annemarie Steinsieck as Lady Wilford
 * Herti Kirchner as Lilian, ihre Tochter
 * Curt Ackermann as James - ihr Neffe
 * Hermann Thimig as Richard Murray
 * Eugen Rex as Smith, Kunsthändler
 * Robert Jungk as Duncan - Hausmeister auf Schloß Wilford
 * Erwin Biegel as Williams - Diener auf Schloß Wilford
 * Willi Schur as Der Nachtwächter auf Schloß Wilford

Other film versions

 * Monsieur Breloque a disparu (1938)
 * Trappola d'amore (1940)