It and a new set of students has been put into Saturday detention at the prestigious and infamous Crestview Academy. When Siouxsie,'' sophomore'undercrust,''' crashes the party to avenge her sister's death, a Saturday detention allowed for Crestview Academy's seniors turns into a date in hell. It isn't a long time before a naïve pussy-cat lover, gay drug trader, smokin' hot preacher's daughter, squeaky-clean senator's son, and the uninvited younger outsider find themselves locked-up in faculty without way out, wondering who (or what) has put them up. Suspense and hilarity ensue while each'bad kid' pits one against another, and one by one each falls prey to ' gruesome'accidents' while attempting to flee.