After ending a broken marriage, the capable and self-reliant Catherine (Elisabeth Shue) took her daughter Alyssa (Jennifer Lawrence) away from Chicago and moved to a house deep in the jungle of Interstate Park. The scenery here is beautiful and pleasant, and it has won the hearts of the mother and daughter. The only fly in the ointment is that a tragic murder occurred in a nearby house four years ago, and the missing daughter has become a lingering ghost in the local population, which makes people inevitably feel worried. Not long after, the upset Alyssa met Ryan (Max Thieriot), the only surviving son of the tragic family. The short exchange made Alyssa faintly find some sense of identity from Ryan, but she did not know what kind of dark secrets were hidden in the heart of this seemingly sensitive and slender boy...