15 years after a global apocalypse, mankind is on the verge of extinction. Civilisation no longer exists, food is scarce and most eke out a living by stealing and killing. One boy clings onto life in the desolate British countryside, where staying away from others has been key to his survival. But this self-imposed isolation comes to an abrupt end when he crosses paths with another group of survivors and faces an enemy far more savage than any of them could imagine.

Val, plagued with memories of the past, becomes convinced that a demon entity has possessed her puppets "Punch and Judy." She becomes sick, and her family thinks that she is close to death and losing her mind. Celebrating Val's birthday, the family begins to disappear, and those that remain have horrifying experiences with the puppets- and they soon learn the true story of Punch and Judy.