It rained heavily that night, and Shi Jin personally shot and killed the "murderer" at the entrance of the alley - the man covered in blood and holding a murder weapon. He thought he was getting justice for an innocent person, but he didn't know that that person was a framed scapegoat. Three years later, Lu Xiao returned from hell with a burned face and a broken arm. He stood in front of Shi Jin and handed over a yellowed surveillance screenshot: The real murderer that night was sitting in the courtroom above you, wearing your badge. Shi Jin's gun hit the wrong person; and Lu Xiao's life had been buried in the snow by his own hands.