The uncanny disappearance of Ethan Carter in a remote location of the USA, traced by detective Paul Prospero. Ethan's family appears to have been possessed by an entity called "The Sleeper" after he found a secret room. As the sleeper dominate their minds, Ethan's is attacked by his own family as they try to prevent the sleeper from awakening. Gradually, detective Paul Properso investigates the unusual events and conflicts between the family members and how they connect to Ethan's vanishing.
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