Jason Willets is one of the fourth generation to have survived the Events, an apocalyptic event that has changed the world drastically. He now works as a mercenary in the desert once known as New York, where a nation has risen from the dust. He supports the government, known as the Reform, which is headed by a delusional man bent on creating peace and order. And when they become involved in his affairs, things get out of hand.

To say the city of Celeste is in trouble would be an understatement. Demons known as Plagues are polluting the town and devouring human souls. Worst of all, they're invisible to all but a select few, those that possess the Sight. Kyrce Sirula is one of those few. He hunts Plagues for a living. While nothing about his job has ever been easy, things get a whole lot more complicated when a leader emerges and a young woman who also has the Sight appears. Not to mention an old enemy out for blood. Leilia "Lei" Hollins has always seen things that weren't there. But her mundane life as a filing clerk is turned on its head when she's asked to keep watch on an eccentric but beautiful man. Turns out he knows a lot about the shadows that have been chasing her. Not one to sit on the sidelines, she decides to help him hunt the Plagues. And gets in way over her head.