Ding Yaxi originally lived in a happy family. Although her mother died and her father married another, her stepmother brought Song Yu, who could be considered her younger brother. But her stepmother was very kind to her, just like her biological daughter. Ding Yaxi was originally a sunny, happy and positive girl, but due to a series of things, she changed dramatically. She became introverted and began to feel inferior. She suffered from severe depression and split personality. The world-famous psychologist Cheng Moyi is his best friend. He tried hard to help her treat her, but she never got better. Her parents sent her to a mental hospital. She harmed many people in the mental hospital and eventually escaped. However, due to the death of her parents, she split into a bloodthirsty personality. She killed many people and committed one murder after another. No one knows which personality she has...
Concept: The darkness of the world