Upper-middle class teen brothers and their newly-met stepsister take a road trip to the Mexico-U.S. border in a tense revenge journey to track down the man responsible for the accident that caused their father's death.
Wanting to build a family, a childless couple fosters a young orphan, survivor of a tragic childhood. But their act of love turns to horror when they find themselves besieged by a malevolent entity intent on destroying the new family.