True-crime author Amanda Bailey knows all about the notorious Alperton Angels cult. There have been dozens of books and films about the Angels, ever since the night nearly two decades ago, when they attempted to sacrifice a baby they believed to be the Antichrist.

With all the cultists now dead - apart from their charismatic leader - it seems like there's nothing new to say about the Angels, until now. The Alperton baby has turned eighteen and can finally be interviewed, and if Amanda can track them down, it will be the scoop of the year.

But rival author Oliver Menzies is just as smart, better connected, and is also on the baby's trail. As Amanda and Oliver are forced to collaborate, they realise that what everyone thinks they know about the Angels is wrong. The truth is something much darker and stranger.