At midnight in late autumn, the deliveryman Zhou Xun rode a creaking electric car around the edge of the city. The insulated box in the car basket contained a strange order - the south gate of the abandoned old steel factory on the outskirts of the city. Always bring a specific hot dish. From the boiled fish that requires "chili peppers to overpower the fishy smell", to the braised pork that is "fat and stewed until it tastes delicious," to the tomato scrambled eggs that must be runny yolks, the orderer never shows up, leaving only a handwritten note and the sound of the wind blowing through the steel bars in the empty factory area.