Gui Lanshan is the imperial censor of Nancheng. He is humorous and wise. Although he is a minor official, he has solved major and strange cases one after another, offending many people and making the officials in the court look down on him, so he earned the nickname "difficult to deal with ghosts". The plot cleverly combines suspense and legend, which is very detailed and fascinating. The characters in the story are distinctive and full of vividness, and a picture of the people of the Qing Dynasty is drawn with profound and delicate brushstrokes. The story of "The Imperial censor of Nancheng" mainly revolves around Gui Lanshan solving major cases one by one. In the case of falsely accusing a good person of theft, the imperial censor Zhao of Jiangxi Province offended the ministers in the court because of investigating the case of Zou Chengren, the governor of Hunan. In the court, the plaintiffs suddenly changed their confessions one after another, and a prostitute appeared to accuse him of soliciting bribes and soliciting prostitutes. Zhao Tiemian was unjustly dismissed and questioned. Gui Lanshan firmly believed that Zhao Tiemian was innocent and began to investigate. Gui Lanshan found that this case was related to the receipt of silver bills. Based on the origin of the silver bills, he finally found out that the Jiangxi government had remitted a huge amount of money, but now it has been used up and has flowed into the pockets of the people involved in this case. Gui Lanshan used the interrogation of the wolf dog to detain the third prince, attracting the prince and the uncle of the king to come to the hearing. Gui Lanshan took the opportunity to present the witnesses and evidence in the court, which made the prince and Lord Ba shudder. In order to keep his position, he finally agreed to punish Zou Chengren and others according to law. In the case of embezzlement of huge sums of money, Enfu, who was exiled to Heilongjiang, suddenly returned to the capital. The transfer order was issued by Lord Ba. The prince and others suspected that Lord Ba had taken bribes, but they could not find evidence. Lord Ba seemed to be clean on the surface, but privately he took bribes and took bribes with the help of his antique shop and made a lot of ill-gotten gains. Gui Lanshan found out the details of Lord Ba and took away the firewood from the bottom of the pot. She ordered the thief Yan Wu to steal a huge amount of silver notes from the Ba Mansion. Lord Ba's life's accumulation was gone, and he was in great pain. When the prince learned about this, he saw an opportunity and wanted to promise Lord Ba's daughter, Miss Ba, to the third prince. Lord Ba had to agree to avoid being killed. The silver notes were handed over to the court, and Lord Ba was left with nothing. He was at a loss. The emperor sent a plaque bestowed by the emperor, "Clean Family Style". Lord Ba also married his beloved daughter to the prince's house for this reason. In the case of finally getting married, Miss Lan, who came from a poor family, had a childhood sweetheart, Shuangxi, and had also signed a marriage certificate. Shuangxi followed Marshal Hu to join the army and had no news for many years. Miss Lan's father was poor and had a short ambition, so he signed a marriage certificate with the uncle of the current emperor. One daughter was promised to two families, and the wedding date was approaching. Miss Lan was in great pain and fled from the capital overnight. The uncle of the emperor ordered people to chase her and robbed Miss Lan. By chance, Shuangxi returned to Beijing with the Marshal. Finally, he reunited with Miss Lan after a long separation. Marshal Hu wanted to help his beloved general Shuangxi get married. The uncle and Marshal Hu refused to give in to each other over the marriage. The emperor was in a dilemma and ordered the Ministry of Justice to make a clear trial. Everyone knew that the case would not offend both sides. In the end, the case was pushed to Gui Lanshan. Gui Nanchan racked his brains and used a strange plan that was in line with human feelings but difficult to find laws, so that the lovers finally got married... In the murder case, the Anhui bandits robbed the family of Zhao Tiemian, a registered censor, and killed Zhao Tiemian. The main culprit in this case, Hu Youan, was a local bully and the head of the constable team. The imperial edict to arrest Hu Youan had not yet been issued, but the third prince had secretly sent someone to call the police, and Hu Youan fled far away. Ma Shangxing and Sa Zhihui and others accepted bribes and wanted to stop the case. But the emperor insisted on getting to the bottom of it. The fake Hu Youan was taken to the capital. Gui Lanshan saw that he looked weak and could not be compared with Hu Youan. Gui Lanshan began his meticulous investigation. The truth gradually came to light. At the execution ground, a critical moment occurred. Gui Lanshan suddenly arrived and persuaded Wang Zhuer, who pretended to be "Hu Youan", to tell the truth in front of the onlookers. The people were in an uproar. The emperor was furious and wanted to try the case in person. This was exactly what Gui Lanshan wanted. He immediately went to the palace and revealed the truth... No matter how complicated and difficult the case was, as long as Gui Lanshan talked and twisted, he could turn danger into safety and uphold justice. His methods of solving the case were incredible, and people were amazed afterwards. Those hypocritical dignitaries did not dare to take it lightly. In order to achieve his goal, Gui Lanshan did not care about personal honor or disgrace, and served the powerful and wealthy without caring about being cursed by everyone; he did not care about methods and ways, disguised himself, investigated openly and secretly, led thieves into the house, and pretended to be treacherous; he did not care about fame and fortune, and once the lawsuit was broken, he hid behind it and ended up free. However, his personal emotional life was full of twists and turns. How could family affairs, national affairs, and world affairs be as expected? "Ghosts are difficult to entangle" to solve major cases in the court, but it was difficult to marry a daughter-in-law. His emotional entanglement with the brothel girl Xiao Jinhua is also a major highlight of this play. No matter how great a hero is, it is in vain when he encounters the word "love". Although this play reverses the playwright's habitual foiling technique, it explores in depth from the theme how small people in turbulent years can maintain the bottom line of justice and dignity. It may be just a drop in the ocean in the torrent of history, but it also shows a legendary ultimate challenge between individuals, society and destiny.