Emma Donoghue beautifully adapts her best-selling 2010 novel of the same name, about young woman named Joy Newsome (Brie Larson), who has been kidnapped and held as a captive for repeated sexual abuse in the soundproofed and electronically secured shed in the backyard of a deranged sexual predator for over seven years. In the shed with her is her five-year-old son Jack (Jacob Tremblay), who was born and raised in captivity in that tiny environment that they simply call "Room", and whose understanding of the world comes only through his mother's carefully shielded words, a television set that he's been led to believe shows pure fantasy, and a small skylight. For five years, she's been able to shield Jack from her captor's advances, but the constant fear and her inability to keep the inquisitive young boy hidden has her think it's imperative that she find a way for him to escape, and, hopefully for him to be able to tell someone who can help that she's still alive and hopeful of being found. However, Jack is the only positive thing she has in this world, and it's hard to let him go, especially when he doesn't know anything about what's beyond Room's walls, or of other people, which makes his chance of survival in doubt.