Thank You, Mr. Moto (film)

Thank You, Mr. Moto 1937 is the second in a series of eight films starring Peter Lorre as Mr. Moto. It was based on the novel of the same name by the detectives creator, John P. Marquand. Mr. Moto battles murderous treasure hunters for priceless ancient scrolls which reveal the location of the longlost tomb of Genghis Khan.

He changes clothes and accepts an invitation to a party hosted by Colonel Tchernov Sig Ruman in honor of American Eleanor Joyce Jayne Regan. At the soire, Moto observes a guest, Chinese Prince Chung Philip Ahn leaving his mother to speak privately with Tchernov in another room. Tchernov offers to buy certain family heirloom scrolls from Chung. When Chung refuses to part with them, Tchernov draws a pistol, then is killed offscreen by Moto. Joyce stumbles upon the scene and watches in disbelief as Moto calmly stages it to look like a suicide. Moto politely advises her to say nothing to avoid an international incident.Later, as a favor to his rescuer, Chung grants Motos request to see the scrolls. Chung informs him that the seven scrolls give directions to the lost grave of Genghis Khan. The Chungs are determined to see that it and its fabulous treasures remain undisturbed. However, one scroll was lent to an exhibition and was stolen. ........

Source: Wikipedia