1978. A young couple road-tripping to Byron Bay. But the highway leads them somewhere quiet, evil. 2008. When this cold case resurfaces a top cop commits suicide. A serial killer invites Duncan and Simon to play his sick game… who will win? A dried up dam reveals the key to a 30 year old mystery: the hacked and bound bones of two missing young lovers. A hippy couple who never reached their destination, families who never knew what happened to their loved ones. When Homicide investigates they discover holes in the case files and clues that were covered up. (thetvdb.com)