Forensic doctor Jiang Yanqiu reappeared and teamed up with marginalized portraitist Shen Zhiwei to uncover a closed loop of serial killings that spanned ten years from a silk button that had been repeatedly tampered with, a piece of disappearing surveillance and a technical fiber dress. When charitable foundations, old criminal cases, and self-media storms rolled out at the same time, they discovered that every piece of physical evidence was a carefully designed trap. And the truth is hidden in those silent evidences forgotten by the world.
