Before there was Mean Girls, there was Heathers. Now that dark comedy is ready to bully its way into New York as a musical. The 1988 film starring Winona Ryder, Shannen Doherty, and Christian Slater has been turned into a show by Tony Award nominee Laurence O'Keefe and Emmy Award winner Kevin Murphy. It starts performances off-Broadway in March at New World Stages after a stint in Los Angeles this year. Andy Fickman directs. It tells the story of a high school misfit in Ohio who teams up with her boyfriend to kill her mean but popular classmates—most called Heather—and make it look like suicide.