The life of a family of three was changed by the diagnosis of terminal liver cancer by his father Weiming. The seemingly peaceful family is shrouded in haze. Mother Mu Ling carried the house, but could not get the father and son's understanding. The son Yiming received the admission letter from the American university, but he dared not tell his parents. He knew that his mother was not easy, but he did not want to show too much concern. Father Weiming secretly made a choice to change the fate of the family in the mist.