When eight strangers wake up in a mansion guarded by an elderly woman with a hunched back (Nenek), they soon realise that they are being held hostage, not only in the mansion and its surrounding forest, but in an entirely unfamiliar dimension altogether. With a sinister threat looming, the eight are left with no choice but to complete a series of 'games' created by Nenek in the hope they can one day return to the lives they once knew.