Fifteen years ago, Zhou Haiping, an employee of Xinghua Machinery Factory, disappeared mysteriously, leaving a large amount of blood stains in the abandoned brick factory. Colleague Chen Jianmin was sentenced to life imprisonment and eventually died of illness in prison. Everyone thought the case was over.
Fifteen years later, Lin Mo, a criminal police officer who was about to retire, received an unsigned letter:
"You arrested the wrong person back then, and I'm still alive."
A photo of the station taken three days ago, a missing audio tape, and seventeen pages of files that were taken away reopened the old case. A key witness suddenly disappeared, and the most trusted master was also concealing the truth.
Lin Mo traced the last leg of the No. 17 Commuter bus, but gradually discovered that the "Zhou Haiping" who had been searched for fifteen years might not be Zhou Haiping at all.
And no one knows the name of the person who really died fifteen years ago.
