During an autopsy experiment, forensic science student Lin Mo receives instruction in Taoist arts from a cadaver teacher in a dream. With guidance from Jiang Chen, a seasoned forensic pathologist who also practices Taoism, he gradually discovers a unique path that fuses forensic techniques with Taoist magic. Meanwhile, sharp-witted detective Chen Hao works cases alongside his partners and gradually uncovers the secrets of his two companions. Once a staunch atheist, he faces life-and-death trials and grows into the team’s indispensable strategist and protector. Together, the three eventually establish the Three Realms Case Office, protecting the order of the human world by combining science and the supernatural.