We all have the killer instinct...Dr Matt Seleckis is looking forward to a relaxing summer in Utah with his wife and young son. Until a seemingly random event catapults him back 26 years to a childhood vacation in the Rocky Mountains - and a shocking and mysterious death. As Matt's fragmented childhood memories slowly unravel, the relationships in his adult life also begin to shift. His loved and revered father, his dead mother, his adored wife...with the past intruding on the present, Matt begins to question everything. Were his father's hunting trips as innocent as his son recalls? Was Matt's mother really the woman he thought she was? What terrible secrets lay in the past? And how close to home are they buried? When Fall comes, a confused and suspicious Matt accepts his father's invitation to join him on a hunting trip to the snowy mountain wilderness called the Mouth of Nowhere. But neither of them is prepared for what their expedition will become: a terrifying journey into the heart of deadly betrayal.