On a scorching summer afternoon, five-year-old girl Nuo Nuo was left alone at home. She lost contact after going out with water and a fan for her father. Mother Chen Qian sensed something unusual from the mahjong sounds on the phone, while husband Li Jian kept covering up his whereabouts with lies. During the search, vague clues repeatedly led everyone in the wrong direction, and the place where the child last appeared pointed near the community square. This is a family story about dereliction of duty and lies, as well as a long-recovering process of relearning honesty and companionship.