Ki-taek's family of four is close, but all are unemployed and the future looks bleak. However, when the son, Ki-woo is recommended by a fellow university student friend for a well-paid tutoring job, hope spawns for a regular income. Carrying the expectations of the family, Ki-woo arrives at the house of Mr. Park, the owner of a global IT firm, where he meets Yeon-kyo, the young lady of the house. The job interview is a success and soon Ki-woo begins work. But very soon, following this first meeting between the two families, an unstoppable string of mishaps lies in wait…