Benjamin Fairchild, interrogator at Usiburn Tower, is in charge of extracting confessions from witches-and then killing them. His methods are brutal. From crushing thumbs to cutting out tongues, Benjamin is not afraid to use the most extreme methods to get what he wants. On a crusade to eliminate every last witch he can, Benjamin is currently tasked with a young girl named Emily. She proves to be a most difficult case. Trying to convince Benjamin of her innocence is impossible when he is certain that witches are the biggest embodiment of sin. However, Emily will force Benjamin to discover a secret about himself that threatens to undo everything he has been taught.