After the death of Ellie's uncle Alfie, an infamous magician and occult detective, the 72 devils of the Ars Goetia are mysteriously freed from their infernal realm. It's now up to her to track down each of these demons and damn them right back to Hell... using holy water, conjuration, or just her trusty, rusty claw hammer.
Meanwhile Dora, a detective traumatized by the same events as Ellie, is suspicious of the untimely death of Alfie. As new terrors unfold, the two witness strange changes to the political landscape of Britain: a gibbering madness infecting the population.
Dueling demons have become a staple of underground life, while a brutal tragedy’s silver lining might have brought Ellie a golden advantage in the infernal prize fights.
Meanwhile, Ellie and Dora reckon with their own internal demons, and Ellie makes necromantic plans that could spell massive changes for the underworld.