Heathers

Heathers, made in 1989, is a cult movie in which three out of the four girls in a trend-setting clique at Westerburg High are called Heather. They play croquet with each other and enjoy playing tricks on their classmates.

Veronica, played by Winona Ryder, is the fourth member of the privileged circle. She dislikes her friends, but stays in the group.

Veronica meets a new pupil, a motorcycle-riding rebel, Jason Dean or 'JD', played by Christian Slater, who seems to offer a way out of Westerburg's social system. But JD is a teenage psychopath, and Veronica takes a long time to recognise this fact. When she muses that things would be better if the principal Heather were dead, JD makes that happen. JD's father, incidentally, is a building magnate who gets his own way by arranging for target sites which he wishes to develop to "accidentally" get blown up.

Heathers is a black comedy exploring teenage coteries as a model for satirising life after high school.