A family of four moves into their new, old house. In attempt to scare her younger brother, Sister tells him the tale of a boy who lives in their walls to explain the scratching sounds at night. To Sister's confusion and terror, she soon discovers the truth behind her tale. Brother neglects to follow the advice from Sister's tale: 'Don't follow the scratches from the boy within. The walls are his home, his name: Damien.' One night, the sounds from the wall lead Brother to the terrifying truth of Sister's tale...