Massacre at Central High

Central High is dominated by a trio of brutal bullies, Bruce, Craig, and Paul. The former bullying victim Mark has taken the role of their reluctant henchman. When Mark's old friend David is transferred to the school, Mark tries to recruit him for the gang. David is not interested in the offer. He intentionally thwarts the attempt of the bullies to rape two female students. In retaliation, the bullies ambush him in a garage and cause a car's wheel to fall on him. David's right leg is permanently disabled. As part of an elaborate revenge scheme, David arranges lethal "accidents" for all three bullies. This creates a power vacuum in the school's social hierarchy, as students brutally compete for leadership. David secretly murders several more students in elaborate death traps. Mark is fully aware who is the killer, but he initially covers for him. By this point, David does not feel that there are innocent people in the school. David plans to kill everyone by planting a bomb in the school's basement and having it explode during a school dance. Mark and his girlfriend Theresa (who is also David's love interest) attempt to prevent the planned massacre.