A ranking German officer is captured by English forces during World War I, and British lieutenant George Sanders─a lookalike for the prisoner─is sent back in his stead to obtain needed intelligence. The pose fools all but secret police head Peter Lorre, who dispatches femme fatale Dolores del Rio to seduce, and then expose, the impostor. Crackling espionage tale co-stars Joseph Schildkraut, Virginia Field, Lionel Atwill. 76 min. Standard; Soundtrack: English Dolby Digital mono.