A mother in the midst of divorce proceedings must track her child's kidnapper alone after being suspected by the police for murdering her own daughter.

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.