Dr. Steven Murphy (Colin Farrell) has it all. He is a renowned surgeon, a successful and beautiful wife (Nicole Kidman), two exemplary children and a perfect suburban house. But there's a dark secret lurking in his past. When a fatherless teen who Steven has taken under his wing begins insinuating himself into the family's life in ever-more unsettling displays, the secret is slowly revealed and destroys everything in a stunning act of revenge.