Cassie is a typical 12-year-old girl. She is inexperienced but curious about sex and depends on her older cousin Lisa for straight talk and honest information. When new neighbors move in, Cassie's life suddenly becomes much more interesting. Fred and Angie Sloane are young, attractive, and fun, and they treat Cassie like a grown-up. She soon spends all of her free time helping them fix up their home and babysitting for their two children. Life with the Sloanes seems nearly perfect until the night Fred puts his hands on Cassie in a way she never expects.