Mei Yee has been trapped in a brothel for the past two years, dreaming of getting out while watching the girls who try fail one by one. Jin lives in the street gangs, passing as a boy to stay safe while searching for her sister. Dai traffics drugs for the most ruthless kingpin in the Walled City, but dreams of a way out. They come together in a desperate attempt to escape a lawless labyrinth... before the clock runs out....