Su Shujuan, a woman from Wuxi County, was sentenced to death for stealing money.

You Hulu, the butcher of Wuxi County, borrowed fifteen yuan to do business. He joked with his daughter that he was selling her fortune, but her daughter believed it and ran away that night. In the middle of the night, a gambler named Lou Rat broke into You's house, stole fifteen dollars to pay off his gambling debts and killed You Hulu. Later, she falsely accused Su Shujuan of killing her father for money. After Shu Juan fled, she walked with an unknown businessman, Xiong Youlan. Neighbors found her suspicious and the bear happened to have money with her, so she was sent to the county government to see the official. The magistrate of a county listened to the rumors and found Juan guilty of hooking up with her husband and stealing money to kill her father, and sentenced Su and Xiong to death.

Kuang Zhong, the official in charge of beheading, felt resentment between them and tried to stop beheading. After a detailed investigation, he found the flaw of the floor rat and then disguised himself as a fortune teller. Get Lou Rat's murder confession, and finally take Lou Rat back to the county government, plead guilty in court, clarify the right and wrong, bring the murderer to justice, and avenge the wrongs.

This is a drama feature film that wins by plot. The plot is tortuous and complex, magnificent and open and close freely. The film has a distinct tendency, criticizes corrupt officials and stupid officials for being too persistent, and gives full affirmation and praise to Kuang Zhong, an honest official who attaches importance to facts, has wisdom and can help the dangerous and eliminate evil. The original opera of this film is widely circulated among the people and is welcomed by people. The film absorbs the main contents and artistic features of the original work, and emphasizes Kuang Zhong's fine style of paying attention to investigation, facts and evidence, and enforcing the law impartially, which has certain practical significance. The film also tries to render the authenticity of the environment, so that the freehand brushwork of traditional Chinese opera art and the realism of film art can be better unified. Although Kunqu Opera is a kind of drama with high and low melody, due to the twists and turns of the plot, it has a strong artistic charm to reveal the sharp opposition between feudal officialdom's disregard for human life and impartial handling of cases through the murder case of 15 million yuan. The adapted version retains the story that the floor rat killed the butcher, especially the gourd, because he stole the fifteen passes, and the magistrate subjectively identified Xiong Youlan and Su Shujuan as murderers, while deleting the story that Kuang Zhong stayed in the temple to interpret dreams for the immortals, focusing on the different handling attitudes of Kuang Zhong, Chao Zhi and Zhou Chen. Through the shaping of these different characters, the darkness and decay of feudal bureaucracy are deeply exposed and thought-provoking.