In the dome city where technology is highly developed, memory has become a commodity that can be extracted, edited and even traded - "memory quality". Ling Xiu, a top "memory eraser", his job is to erase painful memories for clients and let them regain their lives. He is accustomed to this and isolates himself from the emotions of his customers with absolute rationality and professionalism. However, in a seemingly ordinary operation, he separated from the client's memory a bloody murder memory that did not belong to the client. This strange fragment of memory was like a stone thrown into a calm lake, drawing him into a well-planned conspiracy vortex. The deceased who was officially recorded as "accidental" was remembered as the victim of a cold-blooded murder. In order to find out the truth, Ling Xiu had to join forces with Wei Wan, a low-level police officer who was skeptical of him. Step by step, they penetrated into this maze of memories, only to discover that beneath the bright appearance of the Dome City, there was hidden a dark transaction chain about memory plunder and identity replacement. And the end of the truth seems to point to Ling Xiu's own dusty past. When memories can be tampered with, how do you prove "you" or "you"?
