A true story that happened in Busan in 1978. A child was abducted. Detective Kong Jiyong was specially asked by the child's parents to take charge of the case. In order to protect the child, he decided to conduct a secret search. On the one hand, the child's family visited various famous fortune-telling shops to confirm the child's life or death, but the answer they received was that the child was dead. Finally, they found Taoist Jin Zhongshan. "The child must be alive." Taoist Jin used the child's birth date and fortune-telling to confirm that the child was still alive, and the criminal would contact him for the first time in half a month. As Taoist Jin said, when the child was missing for half a month, he received a call from the criminal. Kong Jiyong was convinced that the child was still alive through the clues provided by the criminal and began to believe what Taoist Jin said. But after a month, the search still made no progress. Compared with the life and death of the child, everyone was more anxious to find the criminal. Only Jin Kong Jiyong and Taoist Jin continued to search for the child.