Scouts: An Exorcism in One Act by Michael Stuart Alman

Brand new in a backward hick town, Randall drags his pretentious younger brother, Malcolm, to what he believes will be an ordinary Boy Scout meeting. Instead, Randall finds himself pitted against five savage but remarkably well-read men, who idolize Malcolm's sweeping command of cinema and literature. Someone is behind the twisted rites of passage that ensue -- but his identity will keep you guessing until the very end.