Journey into Fear (1943)

An American ballistics expert and naval engineer, Howard Graham, is traveling with his wife Stephanie to Batumi by train. They stop in Istanbul to meet Kopeikin, who is the armaments representative of Graham's company, and he takes Graham to a nightclub to discuss business. Kopeikin introduces the dancer Josette Martel to him and during the show, the magician invites Graham to go to the stage. An assassin, Banat, tries to kill Graham, but hits the magician instead. Graham is forced to go to the Turkish police and Colonel Haki from the secret service shows him a photograph of Banat, who has been hired by a German named Muller to kill him. Haki asks Graham to travel to Batumi by steamship since it would be a safer trip. However, Graham stumbles over Banat and Muller on board, in the beginning of his journey into fear.