One year after their son's disappearance, Gabe and Eva Kaley move with their two daughters to Crickley Hall in an attempt to escape their memories and give their family a chance to start life anew. But the cellar door suddenly starts opening by itself, invisible children cry at night, and furious ghosts roam among the reeds. But as the Kaley family is nearing the decision to move, Eva hears the voice of their missing son. Having traced a link between the events of 1943 and the present, the Kaley family tries to uncover what ties Crickley Hall to their missing son. Will they find Cam before Crickley Hall takes their daughters?