Forty-year-old cafeteria worker He Nianqiu, raising a sick daughter alone, unexpectedly discovers that her husband faked his death years ago to cozy up to the powerful and wealthy, starting another family in a different place. Heartbroken and disillusioned, she registers her marriage and teams up with a young locksmith Chen Jinzhou to get through the days, unaware that he is actually the new machinery factory director. When her ex-husband returns to the factory to work and publicly humiliates her, Chen Jinzhou steps in, reveals his identity, and fires him on the spot. Her ex-husband's revenge falls flat, and He Nianqiu and Chen Jinzhou grow fond of each other over time, reaping steady and secure happiness.