In 2009, Wang Jiamei (Chun Xia), a 16-year-old Hunan girl, followed her remarried mother and sister to Hong Kong. She felt out of place in the new and unfamiliar environment, and her relationship with her family gradually became tense. Jiamei, who volunteered to become a model, entered the industry as an assistant, tasted the bitterness and sweetness of the circle, and finally sold her body to make more money. Until one day, she met the fat boy Ding Zicong (Bai Zhi) who had a tragic childhood experience, and the fate of the two changed in a tragic direction at the same time. In the busy police station, the fat boy came forward to surrender, and Zang SIR (Aaron Kwok), who was in charge of the case, launched an investigation on the relevant persons. In the process, Jiamei and Ding Zicong's personal stories unfolded alternately. Like two sad rivers, they eventually merged into the water of the Yellow Spring mixed with blood and tears... This film is adapted from a real case.