Mrs. Rossiter, formerly of the garbage heap, wanders around the mystery house, mewling for help. Something giggles and moves through the shadows near her. Elsewhere in the house, Amy and Rory wander around some more. The giggling intensifies. They follow the sound to a door, open it and scream at the sight child-sized figure with a crumbling wooden head and long, tangled hair. Amy laughs with relief. "It's just a dummy," she says. All the more reason to smash it into a thousand pieces! Consign it to the fiery pits of hell! Alas, Amy and Rory are not as immediately hateful of dolls as I am and walk away. Naturally, the thing starts to move.
In the apartment, the Doctor and Alex have their tea while the Doctor frets over the family photo album. Something about it bothers him, but he doesn't know what just yet. The Doctor goes back and forth and back and forth about whether or not to open the cupboard. Finally, he talks himself into it. Meanwhile, little George has been in there with the damnable thing the whole time.
Let's go watch the assy landlord watch TV for a while, why don't we? He talks to himself (and his dog) about the lack of viewing options. This goes on for what seems like a long time before he finally gets up in search of a movie. The moment he steps onto the carpet, the floor goes wobbly and sucks him in like quicksand. "Help me," he says to the dog before he disappears completely. The dog is unmoved by his pleas.
In George's room, the Doctor is taking a very long time moving towards the cupboard. Alex and George stand behind him, breathing hard. Finally the Doctor throws the door open. Everyone gasps then realizes nothing looks especially weird. There are some clothes, some games... a dollhouse. Perplexed, the Doctor fetches the photo album. Right in front of George, they proceed to have a discussion that leads to Alex realizing he doesn't remember the day his son was born. He suddenly begins to remember that his wife couldn't have babies. "How could I have forgotten that?" he whispers. He and the Doctor turn slowly to look at George, who blink-blinks up at them. "Who are you, George?" the Doctor asks. George hears the elevator, panics and Poltergeists Alex and the Doctor into the cupboard in an explosion of light and wind. "Please save me from the monsters," the boy begins to chant.
The Ponds wander around the dollhouse some more. They run into the landlord, who's being chased by several of those creepy dolls. A doll grabs him and he quickly morphs into one of them. Amy and Rory run. The Doctor and Alex wake up in another part of the dollhouse. Alex is having a minor freakout. "We went into the cupboard! We went into the cupboard!" This is one helluva detailed dollhouse, by the way. The Doctor talks himself into realizing George is using some kind of "powerful perception filter" to make everyone forget his mother couldn't have kids. He says something responded to her need to have children. He babbles and blathers something about city blocks and having been around said blocks and then realizes he can hear the elevator that scares George so. A candelabra flicks on and off five times.