Last Scandal shows that old and young, it's never too late for the last scandal of your life! Hong Seon-hee (Choi Jin-shil) is 39, and life isn't getting any better for her. Her husband cheats on her and wants a divorce, and her daughter is too busy chasing celebrities to study like she should. Divorced and almost penniless, just when life can't seem to get tougher, she reunites with her first love Song Jae-bin (Jeong Jun-ho), who is now a famous actor but just as immature as she remembers. By a strange twist of fate, she ends up as his housekeeper and the two start an unlikely and unusual relationship. Love doesn't just come when one is young, and opportunity doesn't just strike once. In reality, love at 39 is just as heart-fluttering and beautiful as love at 19.