Forensic trace evidence examiner Cen Zhao lives under an assumed name and makes a living restoring antiques, but the scent of an old massacre clings to a bloodstained jade cicada she discovers. Xie Yan, a former detective, quietly approaches her and hands her a sealed case file: the fabric beneath the victim's fingernails was something she had mended herself. Antique dealer Su Tang, funeral home makeup artist Zhou He, and reporter Lin Xiu emerge one after another. Every seemingly harmless relic hides a deadly code. When dark red threads begin seeping from Cen Zhao's scars, she finally understands: she isn't the one pursuing the truth. The truth has already taken root inside her.
