During the Qingming Dynasty, a series of murders occurred in Xuzhou Prefecture. The deceased were all wealthy businessmen. At first, the Xuzhou magistrate thought it was just a business dispute and did not pay attention to it. Later, after three incidents occurred in a row, he felt it was a bit strange. Whether it was a vendetta or a business dispute, it seemed strange. Nothing was found, and there were no clues at the scene where the murderer committed a murder or abandoned the body. There was no way to investigate. Finally, when the sixth murder occurred, the county magistrate of Xuzhou couldn't sit still. He began to wonder if someone was deliberately trying to make things difficult for him and came to cause trouble for him.
At this moment, news of the murder reached Bianjing. The emperor was furious when he heard about it and ordered Bao Zheng to go to Xuzhou Mansion immediately to assist in handling the case. The murderer must be apprehended and brought to justice.