In the bustling world of 1930s music and dance, an ambitious young woman named Nan dives into the nightlife of a big city. Coming from a modest background, Nan is determined to forget her past and achieve the fame she so desperately craves. She infiltrates a glamorous club where the lights shine bright and the jazz musicians play irresistible rhythms. However, her encounter with the charismatic and mysterious club boy, a dancer with dark secrets, intertwines her dreams with unexpected dangers.