Room

A 5-year old boy Jack (Jacob Tremblay) and his young mother Ma (Brie Larson) are living in a small squalid room, crowded with a bed, toilet, bathtub and rudimentary kitchen. There are no windows, just one skylight in the ceiling. Gradually, it unfolds that they are captives of a man she calls Old Nick (Sean Bridgers). Up until the present, Ma has protected Jack from the reality of their situation, but Jack has reached the milestone of his 5th birthday and Ma knows he's old enough she can enlist him in a plan to escape. Her motivation to act is also fired by learning that Old Nick is out of work and short on money, and she knows this will affect their safety. Ma activates her plan with Jack's key participation, and the second half of the film is about what happens after the escape plan is initiated.