In the future city "Mirror City" where it rains all day long, memories can be extracted, played back, and used as evidence in court. Ling Ye, the former ace "Memory Stalker", fell into ruin due to a fatal mistake and spent his whole life trying to recall the memory fragments of his deceased wife. When a giant in memory technology died mysteriously in a secret room, the only suspect turned out to be the "Messiah", an artificial intelligence he created with independent consciousness. Ling Ye was forced to leave the mountain and dive into the echoes of the deceased's broken memories, only to discover that this was not only a murder, but also a well-planned conspiracy. He must travel between the virtual memory maze and cold real-life crimes, face the devil in his heart, and find the forgotten truth before crime and punishment in the city completely get out of control.
