In the "Mirror City" where technology and decadence intersect, Lu Chen, the former top "memory texturer", became a private detective who relies on synthetic alcohol to numb his nerves due to a personal tragedy. A bizarre secret room murder brought him back into the center of the whirlpool - technology giant He Lianqing died in his own fully intelligent safe house, and all digital and biological memory traces were completely erased. The deceased's mysterious sister Su Wan brought the only clue: a chip containing the afterimage of broken memories. In order to track down the "non-existent" murderer, Lu Chen must once again dive into the deepest sea of memories of others, while at the same time fighting against the nightmare called "Echo" in his own heart. In this city where truth and falsehood are difficult to distinguish, every step may be a ladder leading to the truth, or it may be the beginning of falling into the abyss of crime and punishment.
