This TV series (Tou Du or Toudu) is based on a true legendary story. In the 70s of the last century, Han Xinxin, a pure and beautiful young girl school graduate from Beijing, falls in love with Ding Jianjun, her schoolmate. Unfortunately their happy days don’t last long for her boyfriend is killed in an accident. Han Xin Xin returns to Beijing alone. She then gets married to an American Chinese and goes to San Francisco. She has no idea that her husband is a Mafia guy and one day he is killed in a gang fight. To revenge his death, she kills the enemy with the help of the head of the Mafia called Louis. And unconsciously she becomes a Mafia guy herself. After several years of hard fights she becomes the head of a Mafia and is called Sister Lin respectfully. Her business of human traffic is soon draws the attention of the Chinese and American police. And at the same time two men get into her life. One is Ding Jian Guo, her boyfriend’s younger brother and the other one is Hao Ren Qing, an ambitious illegal immigrant. The appearance of these two men totally changes her fate.