CHAI Ya-hui returned to Taiwan after getting married in Japan. Since her husband committed suicide, she lived alone with her daughter Xiao-xiao. They were chased by gangsters. One day, Xiao-xiao and her classmate Ya-hoo were kidnapped, Ya-hui asked the police for help but was troubled, so she decided to save her daughter herself. The kidnappers use high-tech methods to torture her and Xiao-xiao, and unravel mysteries related to past dismemberments, organ trafficking, and historical trauma. As clues are intertwined, Ya-hui discovers the key to solving the case, and finally reveals the truth behind the obsession and trauma, and brings an unexpected ending.