Katherine Williamson is your ordinary teenage girl; she's the quiet one in the class who never puts her hand up and the one who is an easy target for bullies but let's just say when you're constantly being hurt, sometimes you want to cause pain to others and that's what Katherine intends to do. This all helps that she is half hunter and so gets to go to a school where they literally get to kill and learn how to kill. Kill demons and undesired supernatural beings. Obviously there's a cute sweet guy and two other guys, oh and one more, and the last but not least bad boy but is he really at all that bad? Overall all those god damned demons out there don't know what they've got in store for them...