The New Daughter (2010) on Netflix

The just divorced writer John James moves to an isolated old house in the woods in Mercy, South Caroline, with his teenager daughter Louisa and his son Sam. Louisa misses her mother Isabel and finds an Indian burial mound in the real estate, where she likes to go. Soon Louisa changes her behavior but her teacher Cassandra Parker believes that the cause is puberty associated to the new lifestyle in a new place and without the mother. When John learns that a tragedy has happened in the house in the past, he hires the babysitter Mrs. Amworth that was recommended by Cassandra and travels to Charleston to seek out the previous owner Roger Wayne that tells details of the tragedy. When he returns, Mrs. Amworth is missing and sooner John finds what is happening with his daughter.