Lou Nangu

A mentally handicapped adult named Fat Cat, who was sentenced to prison for committing a crime, was released on bail. Social worker Maggie was sent to take care of Fat Cat. Maggie picked him up from prison and took him to an outlying island to pay respects to his parents. Due to a traffic accident, the two were separated, and Fat Cat wandered alone. The fat cat was taken in by an old man, his fifth uncle. Due to his simple and optimistic personality, he was very well-liked by the villagers

Zhang Jinsheng (played by Gao Fei), Ma Hui (played by Lu Huiguang), Wang Biao and Huo Qiang, sworn friends, robbed jewelry and went to prison together. Just as they were about to be released, the four got into a fight with another group of prisoners in the prison cafeteria. Hui and the other two were given an additional two weeks in prison, while Sheng was released on schedule. Sheng went to the place where the jewels were buried to dig for the treasures, but the jewels were nowhere to be found