Shen Yu is a top escape-room designer, renowned for his rigorous logic and flawless attention to detail. One day, his former business partner is found dead under mysterious circumstances at home. The police conclude it was suicide, citing the perfectly sealed crime scene and the various clues. But Shen Yu is the only one who spots something wrong: the layout of the supposed suicide scene is exactly like an escape-room design he had never made public, one built around the pursuit of "perfect logic." The killer is using Shen Yu's own work to challenge him intellectually. To rid himself of his sense of "original sin" and uncover the truth, Shen Yu has no choice but to take on the perspective of a "screenwriter" and solve the deadly mystery another "screenwriter" has devised. He and Lin Qingxue, a cool, aloof detective who insists on procedural justice, go from constant clashes to joining forces to hunt down the killer, step by step entering a trap carefully constructed from misdirection and lies. The appeal is that this is more than the police catching a criminal: it's a fierce showdown between one designer and another over logic, psychology, and the desire for control.
