All the evil in the world comes from the echoes of a Demon, who left behind fragments of itself that poison the world. All the wicked deeds you've ever known, every time the worst of humanity is on show, it's because of that demonic energy.
Louis has always been told who he is; he's a Custodian and it's his job to protect humanity from that demonic energy. He's supposed to be a hero, but for the last fourteen months he's been stuck in a tiny little town where nothing happens, and no one needs him.
He's finally given a new assignment, but it's still not what he expected. Being a Custodian isn't easy and most of his new team hate him, and in the case of the know-it-all Danny it's mutual. Louis just wants to do Good, but it's not that simple. He's going to have to learn the Tragedy of Hazel Hardcastle, get to grips with his own power, confront confusing feelings for brown-eyed boys, and eventually, get to the end of the f**king world
