It tells a suspenseful story about a near-future city. When technology ethicist Lin Jingshu dies mysteriously in a secret room, former criminal investigation captain Chen Mo - a fringe policeman with synesthesia who can "see" the color of sounds - restarts the investigation without permission. With the help of the deceased's sister Lin Jinghua and the genius hacker Ghost, Chen Mo used experimental technology to extract the afterimages of the deceased's memories, and gradually uncovered a terrorist conspiracy called the "Alaya Project." The investigation found that the victims of a series of "suicide" cases were participants or critics of this consciousness editing experiment. Chen Mo must fight against the technology giant Lu Tianming who controls everything and the mysterious organization "Nirvana" behind him. In the maze of reality and digital memory, he not only has to find the real murderer, but also faces an ultimate puzzle about memory, identity and free will: In a world that can be modified and edited, what is truth, what is justice, and how should we define "self"? In the end, he must make the final judgment in the broken reflection of human nature.