Ten years ago, Lu Jin burned a key piece of evidence with his own hands, claiming that it was useless paper; ten years later, Yu Zhuo's body was found in an abandoned old house, clutching the charred fragments in his hands - the very fragments of the evidence that he had burned, with the last truth written by her in blood remaining on them. He thought that erasing the evidence would bury the past, but he didn't know that she had already carved everything into ashes. When the forensic doctor extracted the encrypted data from the ashes, and when the police re-examined the old case, Lu Jin finally understood: what he burned was not the evidence, but the last words she left for him.
