Yoon-Jae, a regular college student living independently, has his life disrupted when a new neighbor, Beom-jin, moves in below him. Suddenly plagued by ghostly sightings that seem to target him, Yoon-Jae discovers a cursed bell linked to him by Beom-jin. To rid himself of this haunting connection, Beom-jin enlists Yoon-Jae in assisting with his peculiar job—guiding spirits to the afterlife while they seek a solution to sever the supernatural tie.