When the bodies of a man and his dog are found on the northern hills, Detective Chief Inspector Jack Harris and his team find themselves plunged into a violent world where life counts for little. Drawn ever deeper into the machinations of organised crime, the team start to fear that a ruthless killer is living in their midst as a second murderous assault rocks the hilltop community of Levton Bridge. As the mystery deepens, and people start to panic, the investigation reveals a disturbing world of secrets, half-truths and betrayals where lives and loves are casualties.