Every ten years the demons assigned to tempt mortals in eastern Idaho gather at Hell's Half Acre lava field for a conference on temptation. In these fictional conference talks from 1908 to the present, the region's chief demon/temptor, Benedict Iscariot, describes how the evil plan to destroy morality, virtue, marriage and the family has gradually come to pass, all of which will lead to the enslavement and ultimate destruction of mankind.