Forty-year-old Lin Qiuyun on her birthday day catches her husband Lu Jianping and young ticket seller Chen Xiaoman's illicit affair, is despised by her ex-husband and son for being illiterate and lacking decency, and after leaving with nothing, she sets up a late-night snack stall at the transport station with over five hundred yuan to make a living. Facing harassment from local ruffians, twenty-eight-year-old long-distance fleet boss Zhou Jinchuan steps forward to protect her, melting her heart frozen by twenty years of marriage trauma. Not long after, her ex-husband brings the mistress and goes bankrupt begging to be taken in, but without lifting an eyelid she sets the dogs on them in public. Her son Lu Hao comes twice to leech off her, and she draws a clear line with him in public. And that Zhou Jinchuan, who is decisive and strict outside, is obediently stuffing his wage book, fleet ledger, and all keys into her hands.