During the reign of Emperor Renzong of the Northern Song Dynasty, a water monster appeared on the banks of the Bian River. After receiving the order, Kaifeng Prefecture immediately sent out the sword-carrying guard Zhan Zhao to pursue clues. When Deng Che, the chief of the imperial court, learned about this, he maliciously inserted his nephew Deng Liulang into the investigation team. Several people deduced that the so-called monster should be made of machinery. Under the introduction of Deng Liulang, the group went to the residence of the most famous machinery master "Sheng Lu Ban" today-Qiankun Palace, and met a young woman-Gongshu Ling. Several people came to the underground ghost market, looking for sellers who made machinery puppets, and met a faceless man. During the fight, Gongshu Ling recognized the faceless man as his biological brother Gongshu Qing, who had betrayed his family when he was young. The mechanical beast should also be made by Gongshu Qing. And he was instructed by Deng Che to assassinate the emperor. At the critical moment, Gongshu Ling blocked a fatal blow for Zhan Zhao. Seeing his sister's death, Gongshu Qing suddenly realized and testified to all the crimes of Deng Che...