In the bustling and indifferent city of Ning'an, there is an undercurrent of sin. The captain of the criminal police team, Chi Zhou, a righteous and passionate criminal policeman, partners with the calm and meticulous criminal psychology consultant Wen Jiu to jointly investigate a series of murders against vulnerable groups. As the case progresses, the two discover that clues point to a mysterious volunteer, and the shadows of his past seem to have turned into elaborate crimes.
The truth behind the case is like a fog, causing Chi Zhou and Wen Jiu to fall into a psychological and intellectual battle. However, when the two fought side by side, the subtle emotions that gradually emerged between them also quietly unfolded silently. Chi Zhou's straightforwardness and Wen Jiu's calmness caused them to collide constantly during the investigation, but deep in their hearts, a tacit understanding and dependence emerged - another kind of bond besides professionalism.
As the case progresses, Chi Zhou gradually discovers the past hidden under Wen Jiu's calm surface, and Wen Jiu also realizes the warmth and strength that Chi Zhou brings to her in the darkness. In this brightly lit and crisis-ridden city, truth, trust, and even each other's emotions have become the tests they face. As the truth gradually emerges, can they find each other in the darkness and prevent tragedy from happening again?
Intent: In the game between justice and humanity, reveal the coexistence of sin and redemption, and convey warmth and protection.