Huang Jiang (Anthony Wong) and Qixi (Lau Ching-wan), who are both policemen, are brothers and sisters. However, there are worlds of differences between the two in their actions. Huang Jiang is upright, but Qixi is sworn brothers with the gang boss Blind Chao (Francis Ng). During a certain operation, Huang Jiang was forced to Yu had no choice but to kill Qixi and Blind Chao without explaining the reason afterwards, making Qixi...