After his sister's death, the entire Internet scolded Shen Zhiyao for being cowardly and afraid to speak out. Three years later, she played the deleted audio in front of everyone at a much-anticipated charity dinner - it was her sister's screamed accusation before her death. But no one believed it until Jiang Yanqiu, a voiceprint expert, came forward. It turns out that her stepmother Lin Zhaoyi, adopted daughter Zhou Tang, and even her most respected mentor were all weaving a perfect maze of evidence. And the only thing she can rely on is not courage, but the sentence "She didn't kill me" that has been edited repeatedly but can never be erased. As the audio was exposed, Chen Henian found evidence of cuff fibers, Zhou Tang secretly recorded Lin Zhaoyi's phone call, Xu Manru tried to delete traces of the paper, and the truth gradually emerged.
