Ling Feng, the criminal police captain, relies on his extraordinary logical reasoning ability to repeatedly solve strange cases. However, the occurrence of a series of bizarre cases completely overturned his materialistic worldview: the strange smile on the face of the deceased at the scene of the car accident, the ancient spell that appeared out of thin air in the secret room poisoning case, the unexplained murmur in the last recording of the missing girl... All clues point to supernatural phenomena that science cannot explain. At this time, Su Xiaoqi, a rich man with a mysterious background and a genius forensic doctor, joined the task force. With her profound knowledge of forensic medicine, anthropology and folklore, she can always interpret the traces of crimes that are carefully disguised by the murderer and belong to "human beings" from under these "supernatural" appearances. From tit-for-tat to tacit cooperation, the two formed the strongest detective partner. As the investigation deepens, they discover that behind all the cases there is a huge, ritualistic criminal network, and at the center of the network is an avenger who hates the entire world because of the extreme patriarchal preference of his family of origin. He combined the sins of human nature with ancient legends of ghosts and gods, and directed one "yin and yang mystery" one after another, with the intention of trying the "sinners" in his eyes. Ling Feng and Su Xiaoqi must walk on the edge of reason and madness, push aside layers of ghosts, and uncover the real murderer hiding in the world who is more terrifying than the evil ghost.
