He has the key to hundreds of houses. Maybe even to yours. A gripping sinister deeply unsettling novel from the most sociopathic narrator of 2018. Meet Mr Heming... William Heming is an estate agent. Hes kept a copy of every key to every house hes ever sold. Sometimes he visits them. He lets himself in when the owners are out. But what will happen if he gets caught What will he do next Wonderfully creepy ... a deeply unsettling and original hero Rosamund Lupton author of Sister A superbly plot