The movie "Kagney Linn Karter" stars Ashlee Simpson as Ashlee Linn, a single mother of a young teenage boy. Ashlee's best friend in school, Jessica is the director of a summer camp that she volunteers at. She teaches the boy's subjects in her class, and the two become very close over the years. One day, while the two are talking in the living room, they share a conversation that would change their relationship forever..