Married for three years, Chen Kai earned a monthly salary of forty-two thousand, yet made his wife Su Yan have only two hundred yuan for living expenses every month. Long-term grievances and financial strain finally led Su Yan to propose a divorce. Until his wife fell ill, Chen Kai realized his mistake and began investigating the whereabouts of his salary over the past three years. Facing family pressure from his mother and younger sister, he chose to stand by his wife's side for the first time. As the investigation deepened, a family secret hidden for many years gradually surfaced.