The Uninvited opens with a scene of intense horror, as a young child slaughters her grandmother with a nail-gun to the neck. “No reason, no warning.” Everyone’s immediate reaction is that there has been a terrible accident, especially as the girl is found staring at the wall, as if in shock; but then she comes to herself, grabs the nail gun, and puts it to her father’s face and fires again. “One murder, one blinding. Two minutes. No accident.” The girl had just turned seven.