Criminal psychology expert Lin Xi is the core consultant in hunting down the serial killer "Scavenger". He is calm and wise, and has repeatedly solved strange cases. Until she found a photo of the back of the "Scavenger" at the scene of the latest crime - that windbreaker and that time point perfectly coincided with the fault lines in her memory.
She began to secretly investigate herself, and pieced together a strange personality "Xi Ye" from bank records, hidden equipment and late-night videos. This cold, efficient sub-personality is using "vigilante justice" to liquidate those villains who cannot be punished by the law. And "Xi Ye"'s next target is the deputy mayor who forced Lin Xi's mother to death.
When the evidence chain of the task force gradually points to the inside, and when the captain Chen Zheng, who has a crush on her, casts a suspicious look, Lin Xi has to make a choice in the cracks of the personality game: Should she eliminate "Xi Ye" and return to "normal", or dance with the darkness and complete a revenge that is twenty years late? And the real trial may have begun from the moment she stared into the abyss.
Purpose: When the law is silent and procedures lose their voice, how do individuals find a way out between trauma and justice? Through the extreme setting of "self-hunting", the story explores the eternal paradox of procedural justice and resultant justice, asking whether true salvation comes from punishing others or facing and accepting the broken self.