On Tomb Sweeping Day in 1986, Long Tianming ran wildly in the damp lanes of Kowloon Walled City. Thirty-nine illegally built iron houses collapsed amidst the roar of bulldozers. He pushed open the rusty iron door with his mother who was coughing up blood on his back, and behind him came the sinister smile of the Qinglong Hall's boss "Dao Baqiang". When three nailed wooden sticks pierced his mother's back, Long Tianming picked up the coal stove iron tongs and stabbed a thug in the throat.