Occult private eye Nora Simeon, and Eyre, her uncannily pretty boyfriend, are on another case on behalf of the Commission, the secret organization that controls financial sorcery in the Americas. This time they're hunting down an investment-bank sorcerer who cracked when passed over for promotion and used a summoned demon to commit murder. Finding the murderer is easy, but he's already dead, assassinated in a locked room. The case's ramifications...