THE NUMBER ONE BESTSELLER. YOU DON'T KNOW HER. BUT SHE KNOWS YOU. Rear Window meets Gone Girl, in this exceptional and startling psychological thriller Gripping, enthralling - a top-notch thriller and a compulsive read' S J WATSON, bestselling author of Before I Go To Sleep.
It was meant to be a harmless stag night prank. A few hours later four of his best friends are dead and Michael Harrison has disappeared. With only three days to the wedding, Detective Superintendent Grace - a man haunted by the shadow of his own missing wife - is contacted by Michael's beautiful, distraught fiancée, Ashley Harper. Grace discovers that the one man who ought to know Michael Harrison's whereabouts...