Nora has spent her entire life confined to the basement of her house, equipped with a comfortable setup and access to online schooling. Isolated and barely able to function in the outside world, Nora relies on her parents to bring her daily meals, though they barely speak to her and show little affection. One night, Nora is lured upstairs by a variation of different loud noises. That's when the TV switches on and broadcasts the news of an apocalypse wiping out half of the population.