Although he does not admit it, but Maivis (Charlize Theron Charlize Theron) is a standard standard of older leftover women. She lives alone, has no friends, eats junk food, writes junk novels and, more sadly, her novels don't sell well. One day, she received an email from her father's ex-boyfriend Buddy (Patrick Wilson Patrick Wilson), but mistakenly thought it was a courtship signal sent to her by Buddy. Excited, Maivis decided to reinvent herself and return to Mercury, where she lived as a student, to save her ex-boyfriend, who was mired in a marriage whirlpool. In Mercury, she meets the fat man Matt (Patton Oswalt Patton Oswalt) who once laughed at her. Matt told her to give up the idea of poaching, because Buddy's life is actually very happy, and his wife is also a very attractive housewife. Of course, Maivis did not believe it, but the reality slapped her in the face. Mavis, who made a fool of herself in front of her old classmates, suddenly woke up that Buddy's happy life made her full of jealousy, but her own life was not the "best life" in the eyes of others. One night.