TV play knife shadow background occurred from 1937 to 1950, tells the story of a just killer grew as a revolutionary story. The Kuomintang military Peng Tiange father Peng Zhencai by the secret government delegation, pretending to. Peng Tiange to prove his father was innocent, Japanese spy trap, was sentenced to death. Phoenix folk organization leader to be saved, and will Peng Tiange the top killer make enemies, pseudo factor. The Communist Party underground agents Song Zhuoning use distributors TV juntong intelligence on the identity of the rescue Peng Tiange, leading Peng Tiange to the road of the revolution, and to produce feelings of. Because the bear charges, Peng Tiange and former lover Liu Chenxue cannot recognize. Liu Chenxue then with another quack killer Du Shanqi together. Du Shanqi for the Japanese royal descendants, are patriotic patriots Du Dinghai was adopted, but seek nothing but profits. Liu Chenxue's true identity is Japan Spy, she will Du Shanqi into the arms, a spy hired thugs. So, Peng Tiange and Du Shanqi in the battlefield a few bouts. Liu Chenxue eventually escape pain, to save Peng Tiange. The last battle, a friend of killer for separation of the outcome, Du Shanqi Peng Tiange was the eradication of. Peng Tiange took the injured Song Zhuoning and his father went to Yanan.