In the small, isolated town of Hollow Creek, children have been disappearing without a trace. The authorities dismiss the disappearances as runaways or accidents, but a group of desperate parents begins to uncover a terrifying truth: the children's stories of monsters lurking in the shadows are real. Haunted by fragments of forgotten memories from their own childhoods, these parents realize they too were once hunted by the same creature but had their memories wiped as they grew older. As they unravel the mysteries of their past, they must confront an ancient evil, lurking in the dark and watching their every move, while racing against time to stop the creature before it claims more lives.