In this “powerful and frightening” British thriller, two estranged sisters confront a crime that exposes the nightmares that lurk at the edges of domesticity (Irish Independent).   On a picture-perfect morning in Bath, England, a teenage girl’s body is found on the towpath of a canal. Police detective Zoe Benedict is convinced the department head should look beyond the usual domestic motives to solve the brutal murder case. But no one wants to hear any far-fetched ideas from the department’s black sheep.   Meanwhile, Zoe’s sister, Sally, has started working as a housekeeper for a wealthy entrepreneur whose eccentricities are beginning to seem increasingly repugnant, and possibly dangerous. As Zoe digs into the case and Sally’s suspicions grow, all signs point to one conclusion: There’s something very wrong at the house on Hanging Hill.   “A chiller to the very end. Hayder deals with Britain at its grittiest.” —Peter Millar, The Times (London)   “Mo Hayder has crafted a powerful and frightening thriller that grips the reader from page one to the blood-freezing shock of the final page. Utterly compelling.” —Irish Independent   “[A] superbly plotted tale [with] an end more alarming than anything that comes before.” —New York Daily News