Sun Xiaoli and Sun Xiaomei have not lived together for years - after their parents divorced, their parents each had custody of one of the twins. But after a tragic accident claimed the life of their mother, the devastated sisters reunited and Sun Xiaomei moved into Sun Xiaoli and her father's home. Sun Xiaomei found it particularly difficult to accept her mother's death. She barely spoke and spent hours alone in her room. Sun Xiaoli couldn't bear to see Sun Xiaomei so sad, and she promised Sun Xiaomei that she could share everything in her life now. After all, they were twin sisters. Sun Xiaomei took this promise very seriously. It didn't take long for Sun Xiaoli's friends, teachers and even her boyfriend to be fascinated by Sun Xiaomei. Soon, Sun Xiaoli began to feel that something was wrong with her twin sister. Sun Xiaoli felt that Sun Xiaomei seemed to want to deal with her. Sun Xiaoli told herself that she was suspicious. Her twins pose no danger to her...
