The Apartment Job Season 1 follows the story of Hae Gang, a former gangster who decides to become the president of his apartment residents’ association with the intention of uncovering the building’s hidden fortune. However, his plan takes an unexpected turn when he discovers deep-rooted corruption, hidden secrets, and problems faced by the residents. As he fights against dishonest practices and works to protect the community, Hae Gang’s journey transforms from a personal quest into a mission for justice, making him an unlikely local hero.