| Director | Brendan Cowles, Shane Kuhn |
|---|---|
| Budget | $500,000 |
At the fast food restaurant Hella Burger, mascot Horny the Clown insults Brandon, Tony, and their girlfriends Brittany and Tiffany over the drive-thru intercom. Tony breaks into the restaurant to confront him. Brandon enters several minutes later and finds Tony with his head in the deep fryer. Horny appears and kills Brandon with a meat cleaver. He then goes outside and kills Brittany and Tiffany.
Meanwhile, Mackenzie and her boyfriend, Fisher, find a ouija board and decide to ask it what their future will hold, to which the ouija board spells out the license plate of Brandon's car. The next day at school, Horny ambushes Mackenzie's friend Val in the locker room. The school janitor, Lenny, finds and returns Mackenzie's camera, which she lost at the party. Mackenzie develops the photos, which show the dead bodies of the four murdered teenagers. Horny chases Mackenzie into the gymnasium, where she finds Val's head has been placed in a modified microwave that causes her head to explode. Horny chases Mackenzie throughout the school and she finds Lenny has been hanged, before bumping into a police officer, who does not find any bodies. Mackenzie is taken to a police station and questioned by Detectives Brenda Chase and Dwayne Crockers, who suspect Lenny to be the killer. The detectives visit Hella Burger's owner, Jack Benjamin, who proves to be no help in solving the case.
At a carnival haunted house where Mackenzie and Fisher are working, couple Chad and Tina are killed by Horny. Fisher, in shock after finding the bodies and encountering Horny, is taken to the hospital and visited by Mackenzie and her mother, Marcia. Mackenzie starts to think her mother is hiding something from her, as all the so far murdered teenagers are the children of her old high-school friends. Fisher escapes the hospital by drugging Crockers and later reunites with Mackenzie. Inside Hella Burger, Horny kills two stoners vandalizing the restaurant. Back home, Marcia tells Mackenzie that when she was young, she and her friends bullied Archie Benjamin, Jack's son and the original performer of Horny the Clown. On Archie's 18th birthday, which he celebrated at Hella Burger, they knocked him unconscious and when they left, a birthday candle lit the place on fire, burning Archie alive. Now, his vengeful spirit has returned from the dead to kill the children of his murderers. Later, Mackenzie and Fisher are attacked by Archie. While Mackenzie is knocked unconscious, Fisher manages to unmask him. Fisher's eyes become bloodshot upon looking at Archie's deformed face. Archie then hurls Fisher through a window. Chase and Crockers find Jack hiding from Archie and they arrest him believing that he is behind the murders.
Mackenzie wakes up in Hella Burger, tied to a chair with her mouth gagged and surrounded by the bodies of her friends. A birthday cake is in front of her, as it is now her 18th birthday. Archie douses her with gasoline. Marcia arrives and shoots Archie in the mouth, who in turn chokes her out. Mackenzie takes a drink of whiskey from a flask and holds it in her mouth. Archie torments her with a candle and she spits the whiskey at him, setting him on fire. Mackenzie and Marcia escape as Archie burns to death. Mackenzie and Marcia rush to the hospital to see Fisher only to discover he has escaped, having been possessed by Archie's spirit. At Hella Burger's drive-thru, Crockers is killed by Horny.