In 1999, before Macau returned to China. Macau police officer Ma Zhencheng (played by To Man Chak) was suspended from duty after getting into trouble, and his police career is about to end. Ma Zhencheng and his clerk were still having sex at night, and they accidentally bumped into a mysterious girl Zhang Bixin (played by Liang Luoshi). Zhang Bixin then followed Ma Zhencheng home. Ma Zhencheng woke up drunk...