Lin Ke returns to the investigation circle due to a bizarre death case, which leads to many secret interpersonal relationships and unresolved past events. Under the shadow of the city, she, Mo Zhiwei, Zhou Tian and Zhao Yuntang each pursued multiple suspense cases. The clues intertwined, gradually revealing the darkness of society and the gaps in human nature. As the case progresses, the protagonists' growth and choices, trust and betrayal unfold step by step, finally converging on the ultimate mystery of the disappearance case ten years ago. Multiple story lines are intertwined, and the final truth touches everyone's deepest wounds and redemption. The entire novel uses realistic and serious writing to describe women's struggle, self-pursuit and justice in the shadow of society, and builds a modern urban suspense world with great tension.