The Girl Next Door (2007)

In 1958, a pair of recently orphaned girls are left in the care of Ruth Chandler, a woman slowly going mad. Ruth decides that she must discipline the girls, and encourages her three young sons to share in the girls' punishments. David, their 12-year-old neighbor, has developed an innocent crush on the older sister. As the summer progresses, he finds himself a witness to her sadistic torture. He wants...