On the edge of the city, psychological counselor Li Yin and detective Qiao An jointly investigated a strange disappearance case, and gradually became involved in a series of psychological cases involving identity dissociation, serial malice, and deep manipulation. As the case progresses, everyone's psychological trauma gradually emerges, and mutual trust continues to collapse and be rebuilt. Multiple narrative lines advance in parallel, revealing the repression, paranoia and redemption hidden at the bottom of society, family relationships and self-perception. The plot jumps repeatedly between rational analysis and realistic illusion. In the end, the fate of all characters is reversed after the final truth of the case is revealed. In addition to the main line, it runs through the dividing lines of family, disease, and network society, and carefully depicts the intersection of the characters' spiritual world and external reality. The rhythm of the whole book progresses layer by layer, and the suspense continues until the truth explodes in the final volume.
