Ki–Taek family may be strong as a fist, but they live in a cramped basement, surrounded by poverty and no future ahead of them. On the other end of the city, the family of powerful businessman Park leads a prosperous life in their luxurious villa. After an unexpected stroke of luck the eldest son of Ki-Taek takes on a role of a private tutor for Park's teenage daughter. It gives birth to a selfish plan that should end family's struggle. Wild chain of events will intertwine the lives of two families for ever.

"Thanks to his masterful direction, Bong Joon-ho's relevant political messages unwrap in thought provoking but also highly entertaining form. He calls it "a comedy without clowns and a tragedy without villains". Class struggle becomes an accelerating power pushing the narrative towards the explosive pay off." (Aistė Račaitytė)