Lu Lingfeng put Fei Jishi in jail and locked him in the same cell with Uncle Duguya.Master Fei Ji used acupuncture to treat Uncle Duguya's nightmare syndrome. Pei Xijun made a painting based on the scene in Uncle Duguya's mind. In the painting, the murderer of Qinghong was Liu Youqiu.Uncle Duguya revealed the secret - two months ago, Qinghong went to the Confucian Temple to give Uncle Duguya a change of clothes. Uncle Duguya saw Liu Youqiu behaving frivolously towards Qinghong and left angrily.