She was once the gentle homemaker her family adored, but when her daughter became trapped in a maelstrom of online abuse, she vanished without a trace. Following the records, her daughter, Ding Rui'an, uncovered the lies her mother had carefully woven over thirty years: her name was fake, her household registration had been altered, and even her meek, downcast manner was an act she had learned later in life. More terrifying still, every lead pointed to a long-buried tragedy. Was the woman called Qiao Jingwen a survivor of that murder case, or a butcher wearing a lamb's mask?