The female stacker Mei Xiaoou (Bai Baihe) has experienced many vicissitudes of life. In the gambling city of Macao, she deals with gamblers of different backgrounds, including real estate developer Duan Kaiwen (Wu Gang), artist Shi Qilan (Huang Jue), and political and business personnel from different classes. Even her ex-husband Lu Jintong (Geng Le), who had long fallen into the trough, has been re-involved in her life. These people fight when they enter the casino and refuse to pay when they leave the casino. The female stacker lives a life of lending and collecting debts. Gambling makes people lose their nature. When the stacker deals with gamblers, it is equivalent to dealing with the devil. They are hypocritical for a while, and they are ruthless for a while. When the gambling ends, who can find their nature and who can have good luck?