A murder case ten years ago made Meng Qiaowang, the wealthy daughter of a wealthy family who was originally lively and cheerful, become quiet and cold. In the summer when she was fifteen years old, the appearance of Xie Qingchen, the white-shirted school boy, injected a ray of sunshine into the girl's gray sky. However, Xie Yechen, the school girl's twin brother, accidentally became Meng Qiaowang's deskmate. This cold, evil and even bloody delinquent tortured Meng Qiaowang bit by bit, but silently waited for her in the dark. After learning about the appearance of an oil painting called "Girl on a Rainy Night", his true thoughts from ten years ago were revealed one by one. How will Meng Qiaowang choose when he learns his true thoughts?