In an effort to make a change in a child's live, Alyse and Steven take in a four-year-old who has been thrown out of several homes prior to theirs. Because of their successful parenting of three children of their own and Steven's career as a counselor, they feel sure they can help Belinda and give her a loving home. However Belinda quickly proves to be a great challenge. She is often disobedient and trouble making, hurting the other children and vandalizing their possessions. At times she seems sweet and innocent, easily charming the unwary. Her desire to be the only child takes a deadly turn.