Several county magistrates in Penglai County died mysteriously, and Di Renjie was ordered to investigate the case. The homicide case has just occurred again. Masked assassins assassinated Di Renjie, and the bizarre rescue by County Captain Wu Yong led Di Renjie to discover the suspicion of the county magistrate. However, the county magistrate suddenly died at home, with clues pointing to the Misty Forest. Chasing into the misty forest, but creating an ambush, fortunately rescued by an iron hand. Following the clues of the county magistrate, we have discovered that the appearance of the Japanese people is suspicious, to be preparedWhen captured, he suddenly killed Bai Yuanwai and ran away. Bai Feng, the concubine of Bai Yuanwai, voluntarily requested to live in the county government office. In the evening, Wu Yong brought back the killed Japanese, while Miss Hong mysteriously disappeared. Detective Di Renjie at NightWhen investigating Japanese people, suspicious points were discovered and a trap was set up, successfully capturing Bai Feng who was planning to assassinate Di Renjie. The truth was obtained in the Misty Forest. Di Renjie surrounded the real culprit with people and discovered that it was actually County Captain WuYong, upon learning that everything had been exposed, Wu Yong became angry and wanted to kill Di Renjie. In the end, he was killed by everyone's joint efforts.