In a future urban "Mirror City" composed of endless mirrors and glass, elite memory examiner Li Wei woke up in a strange pure white room and lost all his memory. He is told that he is the key to hunting down a memory criminal who has tampered with reality. The mysterious woman Anya becomes his guide, guiding him through the strange and strange city to piece together the broken memory fragments. However, every time he gets closer to the truth, the boundary between reality and memory becomes blurred. He found that the face of the "prey" he was hunting gradually overlapped with his own in the mirror. In this maze where souls are imprisoned, is he a hunter or a prisoner who has already been captured?