In the future city "New Ark" where memories can be read, senior memory interrogator Lu Chen has solved countless unsolved cases with the help of "tracing mirror" technology. He firmly believes that memory is the irrefutable ultimate truth. However, Lu Chen's belief was shaken for the first time when Fang Zhou, the father of the "Original Mirror", was killed mysteriously and all the memory evidence pointed to a suspect with a perfect alibi - Lin Yuan, Fang Zhou's mysterious disciple. He is forced to dive into a labyrinth of fictional memories, personality codes and brutal truths. In this abyss of memory where true and false are indistinguishable, he must face the paradoxes of technology and the tricks of human nature to find an answer that may subvert the entire world.
