In Xingang, the "Mirror City" where memories can be read, traded and even tampered with, Lin Zhou, the top memory retrieval expert, is a "ghost" with no past. He can sneak into anyone's deepest memory, but he can't open his own. A mysterious commission draws him into the whirlpool: an elegant lady claims that there is a "ghost" in her memory that should not exist. When Lin Zhou dived into the broken memory, he saw his own face that should have been forgotten. In order to find the truth, he must break into the memory maze built by the technology giant "Eternal Life Technology" and face his fate as a "prisoner".
