Jim and Hilda Bloggs, a middle-class couple whose children have all grown up. Their home is hit indirectly by a Soviet nuclear bomb, leaving it in ashes and barely standing. Jim and Hilda survive by ducking behind a door that Jim set up as an inner refuge. But as they cope with the devastation and humiliation of barely surviving the attack, and as they steadily fall into radiation sickness which will eventually kill them both.
