Lily Jo McGrother, born Timothy McGrother, is a girl. But being a girl is not so easy when you look like a boy. Especially when you're in the eighth grade. Dunkin Dorfman, whose birth name is Norbert Dorfman, is dealing with bipolar disorder and has just moved from the New Jersey town he's called home for the past 13 years. All this would be hard enough, but he's also hiding from a painful secret that makes it even worse. Then, one summer morning, Lily Jo McGrother meets Dunkin Dorfman, and their lives forever change.