In the compelling (The Boston Globe) and pitch perfect (Entertainment Weekly) follow-up to Tana French’s runaway bestseller In the Woods, it's six months later and Cassie Maddox has transferred out of the Dublin Murder Squad with no plans to go back—until an urgent telephone call summons her to a grisly crime scene. The victim looks exactly like Cassie and carries ID identifying herself as Alexandra Madison, an alias Cassie once used as an undercover cop. Cassie must discover not only who killed this girl, but, more importantly, who was this girl?