THE SENSATIONAL NEW PSYCHOLOGICAL THRILLER FROM THE INTERNATIONALLY BESTSELLING AUTHOR OF THE GIRL BEFORE'Utterly terrifying and compelling' Stephanie Wrobel 'JP Delaney is King of Thrillers and Playing Nice is his best book yet' Fiona CumminsPete Riley answers the door one morning to a parent's worst nightmare. On his doorstep is Miles Lambert, who breaks the devastating news that Pete's two-year-old, Theo, isn't Pete's real son - their babies got mixed up at birth. The two families - Pete, hi ...