Musical biopic about the life of famed singer Ruth Etting, whose successful career in the 1920s and 1930s was masterminded by a racketeering gangster. Doris Day and James Cagney star. Doris Day and James Cagney star in the musical biopic about the life of famed singer Ruth Etting. In 1920s Chicago, nightclub singer Ruth pursues her dream of stardom. Despite declining his romantic advances, Ruth benefits from gangster Martin Snyder’s connections and old-fashioned intimidation, and she lands a number of lucrative opportunities. As her star begins to rise, Martin grows jealous and becomes increasingly volatile and violent. His obsession with controlling her personal life eventually threatens to derail her hard-earned success.