In 1900's San Francisco, a white woman is murdered in Chinatown and the suspect is a Chinese man. The murder causes a social shock and the public calls for Chinatown to be outlawed. Chinese medicine practitioner QIN Fu (LIU Haoran) and Chinese man Ah Gui (WANG Baoqiang) are involved in the case, and they race against time to find the murderer amidst a battle of wits and courage.
