Detective Lu Zheng has been wandering on the edge of darkness all year round. He has seen the ugliest side of human nature and has long been accustomed to disguising his emotions quietly. Countless cases taught him that people's hearts are unpredictable, and all tenderness may be an illusion. Dealing with others is mostly just a joke.
Su Qingyan is a psychological profiler who is keen and transparent and good at cutting through the layers of disguise of suspects, but deep down in her heart is the trauma left by an old case. She is used to keeping a distance, does not trust anyone easily, and never takes the temptation at the crime scene as sincerity.
A serial murder case suddenly appeared, with seemingly no connection between the victims. Only obscure symbols were left at the scene, the clues were broken, and the mystery was thick. The task force assigned the two people to a team and worked together to solve the problem.
In the interrogation room, at the crime scene, and in the traps set by the suspects, they had to cooperate in acting. Sometimes he acts as a confrontational opponent, and sometimes he pretends to be an unsuspecting ordinary person to lure the murderer into revealing his flaws. Every glance and every conversation may seem like a perfect understanding to outsiders, but both of them know in their hearts that this is just a show-off to solve the case.
They test each other and are wary of each other. Lu Zheng suspected that her past was hiddenly involved in the serial case; Su Qingyan was wary of his reserved and deep thoughts and did not dare to let down his guard. But in the face of dangerous dangers and life-and-death investigations, the disguise slowly appeared cracks.
She saw Lu Zheng's persistence in adhering to justice under his hard shell; he saw the unforgettable pain beneath her calmness and rationality. The days and nights of chasing the murderer side by side, and the deliberate cooperation breeds uncontrollable trust and bondage.
As the investigation deepens, old cases that have been dusty for many years come to light. The murderer's real motive is shocking, and the crisis quietly targets the two of them.
When the case comes to a close, this "playing on the spot" for the purpose of investigating the case is about to come to an end.
They need to distinguish: the tacit understanding of fighting side by side is the acting skills required to handle the case, or the true affection born of two lonely souls in the darkness.
Concept: crime suspense