Mackenzie Carpenter is your typical 17 year old. She thinks life in the O.C. is boring, tends to sneer at most of the stereotypical O.C. kids and wants nothing more than to rock out and be cool. Her plan comes to a screeching halt when her group of friends start to turn up dead one by one in bloody and gruesome ways. The one key factor to all of the murders is the sighting of one "Horny the Clown", mascot of the local Hellaburger Fast Food chain, fleeing the scene of the crimes.