Roger, chairman of the trillion-dollar group WestDream, wantsto do something special for his single mother and introduce his fiancée Vivian to her, so he brings his mother Susan, who works at a small-town restaurant, to the city to celebrate her birthday. However, Vivian’s cousin Lisa, unaware of Susan’s true identity, mistakes Susan for a thief and humiliates her. Later, Susan is again targeted by her future daughter-in-law Vivian, who treats Susan as a fraud and humiliates her. Susan tries again and again to defend herself, but no one listens.After suffering repeated humiliation, she is finally rescued by Roger. Only then does everyone realize that the humble Susan really is Roger’s mother. But by then, it is too late for regret. Roger resolves to punish the villains who bullied his mother and help her regain her dignity.