Being thirteen is hard, but it gets harder when your father is a drunk. Samantha Gywnn feels exactly the same way. Because of her father's crazy acts, Samantha is on a quest to protect her four year old brother, Luke, from him. Her mother, a yoga "freak", thinks that she needs to go easy on the old man. Despite having three, trustworthy friends, Vanessa, Angie and Tracy, Sam hides the fact that her dad drinks. She feels that anyone who found out would loathe her. Sam used to have a good friend named Charlie Parker whom she had shared her secret with. But their friendship was broken when Samantha thought Charlie stole her bra and put it on show back in seventh grade. Samantha decides, to help her feel better, leave notes in the pages of a book to a stranger in the library, the only place where she can freely be herself. She assumes that the stranger is a girl in high school with the initials A.J.K and they continue to pass messages.