Rong, living in a small town in the south of China, is a pedicure therapist who has never gotten married. She has a brother named Xiaodong , who is 14 years younger. Xiaodong is almost 18 years old, instead of working he plays video games all day long, but after going through a series of things he finally becomes independent. And Seeing this, Rong returned to her hometown in the northeast of China, and went to the police station, confessing that she killed a person 19 years ago. However,the following development of the matter is going to be out of Rong's expectation.