Folklore graduate Lin Mo is gifted with the ability to see the residual images of death in objects, but insists on using science to explain everything. When bizarre murders that cannot be explained by science occur one after another in the city, he is forced to join forces with his roommate, Su Xiao, a police forensic examiner who firmly believes in materialism, to investigate.
Second-hand bookstore owner Chen Jiuye uses ancient books to secretly guide, but transnational scholar Shen Yuan keeps releasing ancient evil objects in an attempt to subvert the world. In the conflict between rationality and the supernatural, Lin Mo must face the truth of his own abilities and guard the final boundary between science and mystery in the urban puzzle.
