The autumn rain in Linxun lingers all year round, and seven years of old sins are buried under the turbid waves of the Muxi River.
Lu Zheng, the captain of the serious crime team, has always been trapped in a dusty and unresolved case. Many years later, corpses floating on the riverbank reappeared. The murderer's methods were cold and strange, echoing old cases everywhere. Wen Xu, a specially hired criminal psychology consultant from the city bureau, has entered the game. Under the calm and calm appearance, there is an ultimate insight into the darkness of human nature.
One believes in physical evidence at the scene, and the other dismantles the abyss of people's hearts.
Lu Zheng is decisive and courageous, and adheres to procedural justice; Wen Xu is transparent and restrained, cutting through the criminals' layers of disguise. The two went from testing each other to supporting each other side by side, and jointly solved a series of murder cases caused by worldly entanglements.
The paranoid destruction of intimate relationships, the sudden loss of control of conflicts in the market, the deep cracks in the fetters of family ties... Behind every murder is the sinking of ordinary people trapped in desire and despair.
As the unit crimes were solved one after another, and the scattered doubts slowly came together, they were shocked to realize that in the current series of murders, someone was deliberately replicating the unsolved cases seven years ago.
The layers of fog peeled away, and the real murderer lurking in the darkness of the city slowly emerged.
Traveling through the boundless night, they traced the origin of sin, and found each other's salvation and destination in the cold darkness.
Purpose: Chasing the murderer in the fog of crime, guarding people's hearts and justice in the darkness, two people carrying the past, redeeming each other, adhering to the bottom line of the law, seeing the decline of ordinary human nature, still choosing to face the sun.