After a family tragedy, teenager David Dylan Minnette and his mother, Linda Piercey Dalton, are forced to move into his aunt’s secluded mountain home, which is currently on the market and open to prospective buyers at all hours. Struggling with grief and the unsettling new reality of strangers wandering through their temporary refuge, David becomes increasingly paranoid that something is deeply wrong within the house’s walls. His suspicions are dismissed as trauma by Linda, who is desperate to maintain a semblance of normalcy. As bizarre and intrusive incidents escalate with each new visitor, David must confront a terrifying possibility: the most dangerous presence in the open house may not be a stranger at all, but a hidden threat that has made the house its own. Directed by Matt Angel and Suzanne Coote, this chilling horror-thriller masterfully builds an atmosphere of pervasive dread, turning the simple concept of a home invasion into a nerve-shredding game of psychological suspense where trust is the first casualty.