After being publicly humiliated by the suspect, former detective Changjiangyu locked up the interrogation room and released the video of the Red Maple Lane case that had been destroyed ten years ago, sparking public opinion. The new captain Lin Chao was ordered to suppress him, but traces of tampering were found in the autopsy report. Forensic doctor Shen Zhiwei's unconscious graffiti points to the murderer's password. The USB flash drive hidden by evidence officer Chen Huai becomes the only chance of survival, while media editor-in-chief Huo Yan is manipulating public opinion to grind the truth into dust. When Jiang Yu discovered that the old photos that his mentor Zhou Qishan burned every night were all of his silenced colleagues - a revenge and redemption that spanned ten years had just begun.
