Life is nearly perfect for 15 year-old Matt Moore who lives with his mom, Joan, and supportive stepdad, Bill Hapgood, in rural New Hampshire-until his maternal grandmother, Emily Moore moves into their house. Emily is difficult to start with, she's deteriorating rapidly with Alzheimer's disease. But, it is Emily's odd request that the Hapgoods recreate the room of her elder, deceased daughter, Cynthia, that strains the family. Cynthia's pictures and possessions and even her perfume, come to dominate the lives of Matt and the Hapgoods. As the family's world begins to deteriorate, Bill Hapgood is killed hunting. The circumstances around Bill's death seem to implicate Matt as his killer. It's Emily's accusation of Matt that finally sends the remaining family members into a hellish nightmare they could never have imagined, and from which they can only hope to survive.