Orphan
Orphan follows a couple, Kate (Vera Farmiga) and John (Peter Sarsgaard), who adopt a mysterious 9-year-old girl, Esther (Isabelle Fuhrman), after the tragic loss of their unborn child. However, after Esther returns home with them, the couple realizes they are in danger. In the end, we learn that Esther is an escaped 33-year-old mental patient with a hormonal disorder that stunts her growth.