On Halloween night, Lucy Campbell attends a Halloween party at her rival's house during her high school break with her friends. But her ex-boyfriend and classmate, the psychopath Riven Bronson, poses as the Killer Clown, dressed in a clown costume, attempts to murder teenagers at the Halloween party, stalks him, and wants him to return her love. Will Lucy and her friends have to save themselves from the Killer Clown?
