In the chilling psychological thriller "Shut In," Naomi Watts delivers a gripping performance as Mary Portman, a widowed child psychologist living in an isolated New England home. Trapped by a fierce winter storm and caring for her severely disabled son Stephen, played by Charlie Heaton, Mary's fragile world is shaken when a young, troubled boy from her care, Tom (Jacob Tremblay), goes missing after a car accident. As the blizzard rages, cutting her off from the outside world and her concerned colleague (Oliver Platt), Mary begins to experience terrifying events that blur the line between reality and her own unraveling psyche. Convinced Tom is hiding in her house, she is plunged into a desperate search for the truth, where every creak and shadow holds a menace, and the greatest threat may be the secrets locked within the walls of her own mind. Directed by Farren Blackburn from a script by Christina Hodson, this tense and atmospheric film masterfully builds a claustrophobic nightmare, questioning perception and sanity as Mary fights to protect what remains of her family.