封號南拳王的洪拳武術家暴斃於隧道中的自家車上，屍體並沒刀傷或槍傷痕迹，初步監定死於重拳，重案組總督察陸玄心負責調查，對死因感到不解；此時卻收到監獄傳來消息，犯了誤殺罪的服刑犯人夏侯武，主動表示願意協助警方調查，條件是即時假釋。“先練拳次練腿，後擒拿用兵器，由內而外”，夏侯武斷言兇手行兇目的並非尋仇，且會繼續犯案。
Hongquan martial artist, who was named as the champion of South boxing, died in his car in the tunnel. There was no sign of knife or gunshot wound on his body. He was initially sentenced to die of heavy boxing. Lu Xuanxin, the chief inspector of the serious crime team, was in charge of the investigation and was puzzled about the cause of death. At this time, he received news from the prison that Xia houwu, the criminal who committed the crime of manslaughter, offered to assist the police investigation on condition of immediate parole. "Practice fist and leg first, then capture with weapons, from the inside out", Xia Hou said arbitrarily that the murderer's purpose was not to seek revenge, and he would continue to commit crimes.
Hongquan martial artist, who was named as the champion of South boxing, died in his car in the tunnel. There was no sign of knife or gunshot wound on his body. He was initially sentenced to die of heavy boxing. Lu Xuanxin, the chief inspector of the serious crime team, was in charge of the investigation and was puzzled about the cause of death. At this time, he received news from the prison that Xia houwu, the criminal who committed the crime of manslaughter, offered to assist the police investigation on condition of immediate parole. "Practice fist and leg first, then capture with weapons, from the inside out", Xia Hou said arbitrarily that the murderer's purpose was not to seek revenge, and he would continue to commit crimes.