Instead of being killed out on a frozen lake by 'mum' Vera Farmiga, 33-year-old-cum-9-year-old Esther is seen to survive. She returns to the house, puts on the make-up that helps her pass as a child and lets the police in before escaping.
If They Had Left It In:
While, in this version, Peter Sarsgaard's death is confirmed, we don't know what happens to Farmiga and her other daughter. Will Esther track them down or will she go on to torment a different family? It leaves everything too open-ended.