Ki-taek’s family of four is close, but fully unemployed, with a bleak future ahead of them. The son Ki-woo is recommended by his friend, a student at a prestigious university, for a well-paid tutoring job, spawning hopes of a regular income. Carrying the expectations of all his family, Ki-woo heads to the Park family home for an interview. Arriving at the house of Mr. Park, the owner of a global IT firm, Ki-woo meets Yeon-kyo, the beautiful young lady of the house. But following this first meeting between the two families, an unstoppable string of mishaps lies in wait.
An illiterate cook at a company cafeteria tries for the attention of a newly widowed woman. As they get to know one another, she discovers his inability to read. When he is fired, she takes on trying to teach him to read in her kitchen each night.
Self-made millionaire Thornton Melon decides to get a better education and enrolls at his son Jason's college. While Jason tries to fit in with his fellow students, Thornton struggles to gain his son's respect, giving way to hilarious antics.