10 year old Abigail breaks her arm on the day her family leave town for her sister’s graduation. She is taken to her local, under-resourced hospital, where she shares a ward with a gravely ill elderly lady. Immobile and barely responsive, the lady initially seems perfectly harmless and blissfully unaware of the hospitals surroundings, but as night closes in and the pair are alone in the ward, things soon turn much more sinister.