Veronica is part of the most popular clique at her high school, but she disapproves of the other girls' cruel behavior. When Veronica and her new boyfriend, J.D. , confront clique leader Heather Chandler and accidentally poison her, they make it appear a suicide. Soon Veronica realizes that J.D. is intentionally killing students he does not like. She races to stop J.D. while also clashing with the clique's new leader, Heather Duke.
