In the future urban "Mirror City", memory becomes a commodity that can be read, modified and deleted. Lin Chen, a top memory adjuster, makes a living by sneaking into other people's brains and repairing damaged memories. He is calm, precise, and never misses a beat, until he receives a difficult commission - to retrieve the forgotten famous song of the talented pianist Su Wan. When Lin Chen dived into Su Wan's dead sea of memories, he unexpectedly came across a bloody melody related to his past that had been deliberately buried. He discovered that he was not only a hunter of memories, but also a prisoner in this splendid city whose past had been erased. In order to find the truth, he must start a deadly game with invisible enemies in the maze of intertwined memories.
