• "This is the sort of story I dreamed of covering when I was a journalist. The sort of story for which the phrase You couldn’t make it up was invented. The Adversary takes a deep, mesmerising dive into the darkness of a human soul. There were moments when I truly could not believe what I was reading. But unlike other serial killer noirs sitting on my shelves, this horror is real. And so much more chilling for that."

    Fiona Barton, author of The Widow
  • "The story told here is truly beyond the imagination for even the best crime writer"

    Sunday Times
  • "The mesmerizing true crime tale of an apparently ordinary man whose life mutates in the space of a few blood-splattering hours from the realm of Renoir to that of Stephen King"

  • "He’s the best kind of writer, not just a bestseller but a man who is not afraid to leave the comfort zone of his desk, go out into the world, take risks, and get his shoes dirty"

  • "A triumph of insight and concision, brilliant both as a psychological study and as the portrayal of a community"

    Blake Morrison, Independent on Sunday