ok so I watched this movie in 2011 it was about a teenage girl who a group of teenagers brainwash into thinking she’s someone else so they can get revenge. They move her in with the teacher she got fired from school and make her think that’s her mom. She also lives next door to her real sister who’s in a wheelchair. I remember they wanted to kill her near a lake or river near the end but for some reason they don’t and they have two more movies.