Neon lights flicker as crime lurks in the shadows.
He is Lu Yuanhang, a lone-wolf detective burdened by a painful past, cold-eyed but warm-hearted. He wields logic like a blade, dissecting mysteries and vowing to uncover every last truth.
She is Su Muqing, a calm and professional criminal profiler who sees into the subtlest corners of the human heart. She builds bridges through empathy, traces crimes to their source, and strives to fathom the abyss of human nature.
When the “Smiling Doll” appears in the city, when “Whispers in a Locked Room” conceal a deadly trap, when a “Serial Arsonist” burns away all hope... Each bizarre case tests their intellect and their limits, while reflecting humanity’s most twisted obsessions. Together, they hunt killers in the city’s darkest corners and search for answers through the fog. Yet beneath every cold case file, there seems to be an invisible thread quietly pulling at the bloodstained mystery Lu Yuanhang has kept buried for years: the disappearance of a close family member...
The clash between good and evil, the conflict between love and law. When he stares into the abyss, will it give him the final answer?
