The "White Night Detective Agency" established on the other side of the city has gathered young elites in the fields of law, technology, psychology, journalism, criminal investigation and other fields. They each have their own secrets and beliefs: either to atone for sins, to find relatives, or to pursue justice. They took over difficult and complicated cases, and cold cases, from serial murder cases to cross-border kidnapping cases, to the 'ultimate mystery' in which each other's fate is intertwined. Every time a case is solved, it is a redemption or tearing of the soul; with multiple clues running in parallel, no one can escape the questioning of fate. When the answer to the mystery is revealed, it is difficult to distinguish between ourselves and the enemy, and "truth" becomes the sharpest blade, overturning all established perceptions. In the end, the team members each faced their inner darkness, maintained kindness and trust in the center of the storm, and wrote an ups and downs, multi-dimensional, and realistic modern suspense epic.
