Dragon

Paper maker Liu Jinxi (Donnie Yen) lives in a quiet Yunnan village with his wife Yu (Tang Wei) and two sons. One day, Liu runs into a robbery in the local general store and manages to kill the two criminals by sheer luck. However, detective Xu Baijiu (Kaneshiro Takeshi) thoroughly analyzes the crime scene and comes up with a different conclusion: Jinxi is actually a brutal killer who was once the second-in-command of the powerful 72 Demons Gang. Soon, word of Jinxi's heroics reaches the gang's leader (Jimmy Wang Yu) and his wife (Kara Hui), who set out to reclaim their own by any means necessary. But is Jinxi really the legendary killer the detective believes he is? (official distributor synopsis)