The Sin Code: Confessions of the Seventh Skeleton

Ten years ago, forensic doctor Lin Mo's sister Lin Xiaoman disappeared on a rainy night, leaving an unhealable scar in his heart. Nowadays, strange murders occur one after another in the city, and the bloody fingerprints at the scene are exactly the same as the evidence in the case of my sister's disappearance. Each victim was left with his sister's belongings - the silver bracelet he had put on for her. As the investigation deepened, Lin Mo discovered that all the cases were related to the Rainy Night Butcher case ten years ago, and the murderer of that year had long been brought to justice. Is it a copycat crime or is the real culprit someone else? As he gets closer to the truth, a more terrifying secret emerges: his sister's disappearance may not be an accident, and the belief in scientific forensics that he has always adhered to is being destroyed step by step by invisible black hands.