SHUT IN is a low budget Canadian thriller with a Hollywood star in the form of Naomi Watts, who really needs to learn to pick better material (but then I wasn't fussed about the bloated KING KONG remake that made her name either). She plays the stepmother of a boy (as played by STRANGER THINGS star Charlie Heaton) badly disabled in a car accident that also killed her husband. The two share many dark times but there's a ray of light when another vulnerable boy comes into Naomi's care. All this is rather insipid and tired, and then towards the end it suddenly shifts into a laughably predictable psycho thriller mode with jump scares and the like. It's not believable for a moment.