An old tape that seals secrets, and several murders disguised as accidents.
The missing avenger, the justice being exploited.
Eight years ago, all the evidence against Qingyu Kangyang was destroyed, and audio technology policeman Wen Yu secretly hid a copy of the unaccounted recording.
Lu Yan, the crime team, traced the serial cases and uncovered a cruel scam in which the victim He Xiuwei was deceived by capital and turned into a tool.
Legal principles and conscience pull against each other, and the silenced reverberations will eventually break through the many lies.
Purpose: The truth can be kept secret, the desire for justice cannot exceed the rules, and revenge cannot bring justice.