Blumhouse Television

Craig, a young boy living in a small town befriends an older, reclusive billionaire, Mr. Harrigan. The two form a bond over books and an iPhone, but when the man passes away the boy discovers that not everything dead is gone.

In an effort to reconnect and mend their relationship, a troubled couple and their preteen daughter seek an idyllic getaway to a remote mansion in rural Louisiana. But when unexpected visitors arrive, their facade of family unity starts to unravel, as terrifying secrets come to light.

While diving in a remote French lake, a couple of YouTubers who specialise in underwater exploration videos discover a house submerged in the deep waters. What was initially a unique finding soon turns into a nightmare when they discover that the house was the scene of atrocious crimes. Trapped, with their oxygen reserves falling dangerously, they realise the worst is yet to come: they are not alone in the house.