Xiaoya is crazy about food beyond ordinary people. Because of her obesity, she was bullied everywhere. Xiaoya's father works outside all year round and lives with her mother under the same roof. Xiaoya's mother is pretty and charming, and takes good care of Xiaoya's daily life. Until one day, her mother suddenly began to behave incomprehensibly strange ways towards Xiaoya. When Xiaoya learns the real reason for her mother's anger towards her, the lives of mother and daughter change forever. What was once a simple and warm family has become bizarre and terrifying. When Xiaoya's body is found at home, what will happen next...