Tracey Berkowitz, 15, a self-described normal girl, loses her 9-year old brother, Sonny. In flashbacks and fragments, we meet her overbearing parents and the sweet, clueless Sonny. We watch Tracey navigate high school, friendless, picked on and teased. She develops a thing for Billy Zero, a new student, imagining he's her boyfriend. We see the day she loses Sonny and we watch her try to find him.