Room tells the story of Ma and Jack. At first, things seem normal. They stay in a room, so what? Yet, subtle yet meaningful details imply, little by little, that there’s actually something wrong with the whole setup. Why let Jack sleep inside the wardrobe, in the first place? Also, isn’t it strange that Old Nick, another character in the novel, just comes in at night?
Eventually, it is revealed that Ma is actually being held captive by Old Nick. How it has begun and what happens next are things you should figure out by reading the book. It’s a real page-turner, so prepare yourself.