She moved into her late grandmother’s house hoping for a quiet fresh start and a chance to leave her troubles behind. But not long after settling in, she begins hearing a strange tapping beneath the floorboards—three slow knocks that echo through the house every night without fail.

While searching through boxes of old belongings, she uncovers photographs that reveal something impossible hidden beneath the property. As the mystery deepens, she realizes the sound isn’t coming from the cellar at all. It’s coming from something far older, something that seems to know she’s there—and something that has been waiting for her to finally notice it.