Seven years ago, a dust-shrouded "school badge case" caused Jiang Shubai to lose his loved one forever, and also burned Lu Jin's undercover career to ashes.
Seven years later, a series of "ritual crimes" with strange techniques occurred in the foggy city, and a blood-stained school badge was left at the scene. Jiang Shubai, a marginalized psychological profiler, and ace captain Lu Jin, who was on alert due to out-of-control pheromones, were forcibly tied up by the top management to form the least promising "patient combination."
The first meeting was a confrontation. Jiang Shubai's rational profile accurately stung the old wounds that Lu Jin tried hard to cover up; Lu Jin's violent case-handling style even trampled on the principles of order that Jiang Shubai believed in. They are "madmen" and "monsters" in each other's eyes. They confront each other on the conference table, compete at crime scenes, and hold each other's throats with professional blades.
However, when they peeled back the layers of the crime, they were shocked to find that all the clues were looping around like poisonous snakes, biting hard at the common starting point seven years ago. The faces of the victim and the perpetrator begin to blur, and trust and betrayal dance on the tip of the knife. What's even more fatal is that Jiang Shubai found that his emotions were slowly "reviving" - the target was actually the most uncontrollable Lu Jin; and Lu Jin's disordered pheromones found the only analgesic in Jiang Shubai's extremely calm aura.
This is a chase where the two mirror each other in the maze of sin. They must learn to recognize love in hatred, build life in destruction, and become each other's weakness while also becoming the pair of blades that pierce the endless night.
"If the truth is the seventh level of hell," Lu Jin held Jiang Shubai's trembling hand holding the gun and pressed it against his heart, "I will jump down with you."
"No!"
