Mingming is the debut work of Hong Kong female director Au Suet-yee, who has transformed from a music video director to a film director. This story takes place in the grey area of Hong Kong, which is full of violence and indulgence. The chivalrous woman Mingming (played by Zhou Xun) has always been daring in love and daring in action. When she meets the handsome playboy Ah D (played by Daniel Wu), sparks fly. Ah D offers the same condition to all women in the world: 5 million, and he will go to Harbin with her and live together. Mingming robs the leader of the underground organization Mao Ge (played by Jeff Chang) without saying a word, and takes away his mysterious wooden box. Mao Ge is furious and orders his subordinate Lao Shu (played by Chen Baoyuan) to capture Mingming and take back the box intact. At the moment of escaping, Mingming meets two people in the busy city of Central - the young and dangerous Ah Tu (played by Tony Yang) and the lost girl NANA (played by Zhou Xun) who looks exactly like her. It turns out that NANA is also Ah D's other girlfriend! Mingming pinned the stolen money on Nana and kept the box for herself, successfully escaping. Fortunately, Nana met Ah Tu, who had a crush on Mingming and mistook them for each other, and the two began their desperate journey. Ah D mysteriously disappeared in Shanghai, leaving only a mysterious phone message. Mingming and Nana went there separately, and they both knew that the more obsessed they were with Ah D, the more frustrated they would feel. Ah Tu, who still mistook Nana, was upset to see that the person she loved had gone somewhere else, but she was still willing to go through fire and water for the person she loved. After tracing back, they both knew that Ah D had gone to Shanghai to get rid of his nightmare.