Social life at Westerburg High School is ruled by a clique of three Heather and Veronica (Winona Ryder). When rebellious troublemaker J.D. (Christian Slater) joins the school, Veronica finds herself attracted to him, so when he suggests having their revenge on the Heathers, she is more than happy to go along. But J.D.'s revenge plans are a little more lethal than Veronica anticipated.