Fourteen years ago, veteran detective Chen Jianguo died in a mysterious car accident while investigating a pollution case, and the case files were sealed.
Fourteen years later, his son Chen Muchu joined the police force and discovered an unusual wound during a convenience store robbery - the same angle, the same lie.
When he pried open his father's dusty files, a drug manufacturing network emerged behind a pollution case, a female corpse was involved in a cross-provincial protection umbrella, and within the police force, someone was using a siren to convey a death signal.
Forensic doctor Wu Tianming became an accomplice in order to save his terminally ill son. Captain Zhao Tiefeng endured humiliation for ten years as an informant. Behind brother Lin Tao's betrayal was his sister's life debt...
Every road leads to the abyss, and every "evil" was once an innocent.
When Chen Mu finally came across the core criminal evidence HS307, he discovered that it was not only an employee number, but also coordinates - pointing to a larger dark system.
"Some light has to be found in the darkness."
But what if darkness itself is what light looks like?
A masterpiece of social suspense, with Hu Yanyun's cold writing style and a labyrinth of human nature that is reversed layer by layer.
There is truth on top of truth, and there is still a long night after justice - and do you dare to follow this dark light?
