Twenty years ago, Ren Shengli fell in love with Shi Junxia from the same village, but was falsely accused of rape by Shi's mother and sentenced to 20 years in prison. The story begins when Ren is released from prison. He found Shi, who was working as a nanny in Beijing, and confronted him about the past, but he was attracted by Shi again because of his simple mind, and was persuaded by Shi to kidnap the owner's silly boy Mao Huhu together with Shi.