"The World of the Married" is a South Korean drama series that tells the story of a married couple whose life seems perfectly happy. Ji Sun-woo is a respected family doctor who holds a high position at Family Love Hospital. She is also the wife of a budding director who owns an entertainment film company. Together, they raise their teenage son, Lee Joon-young. Sun-woo has no idea that her loving husband is being unfaithful to her, and her friends are ready to betray her at any moment.