A bullied teenage girl forms an unlikely friendship with a mysterious young man who protects her from her assailants, while she copes with the pressures of her final examinations.
Li Jie, a lawyer, is taking divorce proceedings to try to get custody of her daughter. As she is working hard to earn a better life for her daughter, she hires a baby sitter, Sun Fang, to watch her child. One day, Li comes home only to find her child and Sun have disappeared. Unfortunately, Li is suspected by both her family and the police, and must lean on herself to trace Sun alone.