35 years ago, under the powerful flood of Only Child Policy, a man called Guozheng Wang sacrificed his wife, to give a birth to his son. After 35 years, 2021, the three-child policy is laid out. Under Guozheng’s morally blackmails, his son, Shuxin has grown up and been married with Zhiqiu, but doesn’t want a child at all. He feeds morning after pills to his wife secretly and even makes a fake medical certificate shows he’s infertile. In Mid-Autumn Festival, Guozheng visits his son and daughter in law, to give his final order.