A group of friends. A holiday of a lifetime. A psychopathic killer. When a body is discovered at the bottom of a popular tourist summit in the Flinders Ranges, Detective Sergeant Bianca Mills teams up with clinical psychologist Jack Collins to investigate. Snippets of information gathered from residents of the nearby small country town lead the duo down a twisted path, revealing hidden secrets, lies, and a dark past. Is there a connection between their current investigation and the cold case disappearance of four university students three years earlier? And will Shirley from the local Tourist Centre be able to help DS Mills and Jack… before it’s too late?