Deep in the modern city, a reasoning team headed by Cheng Yiran, a down-and-out criminal investigation elite, was quietly established. They each hold secrets and missions, and they continue to grow amidst complex human nature and mysterious cases. Each volume focuses on an independent but interrelated main case line, covering common real-life mystery cases such as disappearances, serial killings, corporate crimes, and anonymous extortion. It is intertwined with the personal stories of team members, the power and trust game within the team, and the multi-party competition between external forces (police, media, gangs, and companies). Through technical, psychological, forensic and social resources, the team uncovered the truth time and time again, but also gradually became involved in a larger conspiracy and self-salvation. In a serious and realistic style, the case, character psychology and social ecology are described in a calm and rational way, and ultimately the bottom line of justice and humanity is faced.
