Runyonesque Broadway gamblers turn patriotic when they stumble onto a cell of Nazi saboteurs.
Broadway gambler 'Gloves' Donahue wants to find who killed the baker of his favorite cheesecake. He sees nightclub singer Leda Hamilton leaving the bakery. When her boss Marty's partner Joe is murdered, Leda and her accompanist Pepi disappear. It turns out that beneath all the mystery is a gang of Nazi operatives planning to blow up a battleship in New York harbor.
