In 1995, four-year-old meme top injures himself in what his six-year-old sister Kaylee says is a sleepwalking episode. Kevin is then taken to a hospital and brought back home. The father calls someone and tells them that the hospital didn't need to give stitches and he only hit his head. Some time later, the two siblings wake up in the middle of the night to find that their father has seemingly disappeared and that the windows, doors, and other objects in their house are gradually vanishing as well. Kevin suggests they sleep downstairs, where they watch cartoons on a television. They awaken to find the house still dark. They hear an unexplained thumping noise and find a chair standing upside-down on the ceiling. Kevin asks Kaylee where she thinks their father is, to which she replies that she does not know. Kevin then suggests that "maybe he went with mom," to which Kaylee replies “I don’t want to talk about mom.” Kevin shows Kaylee that the toilet in the downstairs bathroom has disappeared. Kaylee accompanies Kevin to the upstairs bathroom. She sees a doll on a bedroom ceiling, and Kevin returns to tell her that he is too frightened to use the toilet. They decide to place two buckets in the downstairs bathroom. A mysterious voice calls to Kaylee from the darkness, telling her to come upstairs.
Kevin picks up a telephone and calls 9-1-1. He whispers to the operator that he was cut with a knife and that he feels sick. The operator tells him to stay on the line, and that adults will be on their way to help. The operator then asks why he is whispering, if there is someone else in the room with him, and where he is in the house. Kevin says that he is downstairs and that the doors have disappeared, before dropping the phone. The phone turns into a Chatter Telephone toy and the voice claims responsibility for it doing so, telling Kevin that it can "do anything." It says that Kaylee did not do as it told her; she said that she wanted her parents, so it took away her mouth. It tells Kevin to come upstairs, and he obeys. Holding a flashlight, he finds himself on the ceiling. He walks into a bedroom which becomes a void. 572 days later, a pile of toys sits in a seemingly endless hallway and is pulled back into the home. Kaylee is seen sitting on the side of a bed and her head slowly fades away, followed by the rest of her body. Photos of a faceless child are shown with photos of the child headless. Kevin cries out as blood splatters onto the floor, then disappears and spatters repeatedly, and Kaylee cries out for her mommy. Kevin asks if he can watch something happy. A door appears in the darkness, and later an indistinct face. The face tells Kevin to go to sleep; Kevin asks for its name and is met with silence.
