"Who knows what evil lurks in the heart of men? The Shadow knows." Based on the long- running radio program, this atmospheric feature follows the exploits of Lamont Cranston, aka the Shadow, as he battles the last descendant of Ghengis Khan who has come to take over New York City through mass hypnosis. See other new releases, "Behind the Mask" (1937) and "The Shadow Strikes" (1937) for the first film adventures of the Shadow.