G4L. Did I Say I Was Gangsta?

Angel is just your typical emo gangsta who has never had much trouble. But when there's this new Teacher in town at Angel's School, she starts to receive calls from an unknown person. She feels as if he is threatening her and possibly might send the police on her. She tries to find out who he is but little does she know he isn't very far from her. Can she make it through senior year without much trouble konwing there is an enemy gangsta in school?