After befriending a British couple with a mute son, Americans Ben and Louise accept an unusual invitation to bring their daughter for a weekend at an idyllic country estate. Yet when they discover their hosts are hiding sinister motives, Ben and Louise fear their family may be pawns in a disturbing plot. Led by a riveting performance from James McAvoy as a charismatic man masking unspeakable darkness, a dream holiday warps into an unnerving nightmare in this shocking thriller from Blumhouse, producers of The Black Phone.