Todd discovers The Book Of Pure Evil and decides to use The Book to transform himself into a heavy metal guitar god to impress Jenny. The book's evil powers are now unleashed on Crowley High, and havoc ensues.

When Crowley High's only gay student uses The Book to make every boy gay like him, Todd's feelings for Jenny are put to the test.

Todd, who has a strange fear of fat people, is forced to fight an evil monster made from human fat when an obesity epidemic takes over Crowley High.