Midnight Nursery Rhyme

Lin Wan, an ordinary librarian at the Qingshi Town Library, was involved in the whirlpool after witnessing the murderer of the second "nursery rhyme murder case". However, her testimony was completely inconsistent with the evidence at the scene, and the police regarded her as the number one suspect. No one knows that this seemingly weak woman is actually the profiler "Nightingale" who scares international criminals, and the hacker "Ghost" who can invade any system. She is dormant here, just to find out the truth about why her family was wiped out by the "Nursery Rhyme Killer" twenty years ago. When the third corpse appeared, the nursery rhyme's death countdown advanced again, and Lin Wan held half of the blood-stained sheet of music - that was the provocation deliberately left by the murderer for her, and the only password that could connect all the victims. She must walk a tightrope between using her "vest" powers to solve crimes and hiding her identity. The new detective Gu Yan is both suspicious and protective of her, and he seems to have secrets related to old cases hidden in him. As the investigation deepened, Lin Wan discovered that all the deceased were related to a covered-up death case, and the real murderer's revenge accurately targeted every "bystander" that year. When her hacker vest was almost exposed, when Gu Yan began to secretly investigate the "Nightingale", and when the nursery rhyme reached the sixth verse, Lin Wan was forced to make the final choice: Should she continue to hide and wait for the seventh victim to appear, or should she reveal all her cards and have a final showdown with the real murderer that risks everything? In the last verse of the nursery rhyme, not only the truth is buried, but also herself.