Twenty years ago, detective Lu Mingyuan committed suicide by falling down from a building while investigating the "Fogang Serial Case", leaving behind an unsolved mystery.
Twenty years later, the same technique reappeared in Fogang. Philanthropist Chen Guodong died mysteriously, leaving Lu Mingyuan's relics and bloody words at the scene: "The trial has begun."
Criminal investigation captain Lu Chenzhou was forced to take over the case, but found himself stepping into the fog that his father had not yet finished.
Every deceased person matched the list of old cases, and the killer whispered in the dark: "Officer Lu, I am completing your father's unfinished trial."
Side by side with Lu Chenzhou is Lin Wanzhao, a professor of criminal psychology - her father was the only survivor of the year, but in his madness he murmured: "He is not alone..."
During their investigation, the two discovered that the black network of the "Fog Harbor Project" had never disappeared. There are four names left on the list, and Lu Chenzhou himself may be the last one.
When procedural justice becomes a fig leaf, when silence becomes a license for accomplices,
Is lynching, which uses violence to counter violence, more evil, or is a system that condones evil more hypocritical?
Some truths are more terrifying than death, but what is more terrifying than the truth is that we would rather live in lies.
Purpose: The truth is never pure, it is mixed with lies, sacrifices and unfulfilled promises. This is a story about two generations protecting justice in their own ways. It is also a difficult choice to weigh the weight of human nature in the gray area between black and white.