God's Password

Archaeologist Hong Tao discovered an unknown ancient tomb from the Ming Dynasty in a minority tribe in Asia. A navigation compass from Zheng He's voyages to the West was unearthed in the ancient tomb. A month later, Hong Tao, who was responsible for studying the compass, was killed. The murderer strangely drew an unknown formation diagram with lime sprinkled around where he fell. Hong Tao also left some clues before his death, and the compass also disappeared. The person responsible for investigating the case was Officer Song Lingsong, the head of the serious crime team of the Criminal Investigation Team of the Heshi Public Security Bureau. When investigating the formation diagram, she discovered that Xia Shuang, a history professor at Heshi University, had studied this formation diagram. However, Song Ling was disappointed. Xia Shuang had resigned from teaching at the university ten years ago because of guilt over the suicide of his student, and now lived a life of seclusion in the mountains and forests. After Song Ling eliminated Xia Shuang's suspicion, she hoped that Xia Shuang could help her solve the case, but Xia Shuang refused. A few days later, another murder occurred in He City. The murderer also left behind a formation diagram. Due to the identities of the two victims, Xia Shuang felt that the two murders were probably related to the murder of his students. Xia Shuang took the initiative to come to He City Police Station and agreed to assist the police in solving the case. However, what he did not expect was that because of his intervention, a shocking secret about human beings was about to be revealed...