NEW YORK TIMES EDITORS' CHOICEFrom the award-winning author comes the gripping tale of one of the most scandalous murderers in modern Irish history, at once a propulsive work of true crime and an act of literary subversion.“A masterpiece”— The Observer • “Disturbing [and] compelling”—Colm Toíbín • “Superb and unforgettable"—Sally Rooney • “Brilliant”— New York Times Book Review • “A masterly work”—John Banville • “Fascinating”—Emmanuel Carrère • “Morally complex and mesmerizing”—Fintan O'Toole