Lee Kangjin has just inherited an entire building in the affluent Gangnam neighborhood of Seoul. The only catch is he has to run the diner in that building for five years, but little does he know that he has to serve ghosts too! From 11 p.m. to 1 a.m., ghosts who carry resentment in their hearts come flocking to the diner in search of their comfort foods that remind them of what life was like. Can Kangjin handle both the culinary and personal demands of his undead customers for five whole years?