Forensic doctor Lin Shen, the thirty-sixth generation of the Yin and Yang descendants of the Lin family, appears to be the chief forensic doctor of the criminal investigation team, but in fact possesses the secret skills of both Yin and Yang. He can distinguish souls, suppress evil spirits, and solve spiritual cases; Interpol Su Wanqiu, a capable and decisive elite police detective, was forced to join forces with Lin Shen due to a series of "deaths in secret rooms" and "disappearance of living people" and other cases beyond common sense. One of the two is proficient in the secrets of yin and yang, and the other is proficient in the logic of criminal investigation. In the gap between light and darkness, they uncover the supernatural truth that has been sealed for centuries.
