Dr. Madeleine Gerron, a nineteen-year-old genius already holding two PhDs who graduated high school at the age of twelve, has been asked to join the FBI Behavioral Analysis Unit, a team of highly qualified agents who analyze criminals' behaviors to solve cases. Influenced to join by a traumatic experience that involved her, her parents, and her younger brother, she finds that after a lifetime of not fitting in, the BAU is probably the one place where people understand her, especially the intelligent and seemingly attractive Dr. Spencer Reid.