A young Chilean backpacker goes missing, and PJ is called in to investigate. Another young female back packer went missing a few weeks ago from Mildura, and there is fear that they may both have met the same unpleasant fate. But PJ has more than just a missing girl to deal with. A gung-ho private investigator, Archie Garrett, has been engaged by her parents to find the girl, and is all too keen to join forces with PJ. At first Archie seems to do nothing but get in PJ's way and complain about the coffee they serve at the station. But as the case progresses, he continually happens to be in just the right place at just the right time, especially whenever a new piece of evidence is discovered. Is he lucky or does he know more than he is letting on? As an experienced detective, PJ knows that trust is something which must be earned but Archie is doing nothing by earn himself a reputation for interfering in police matters. Or is Archie genuinely sharing all the information he uncovers? Who to

Private Investigator Archie Garrett returns to Mount Thomas to find a petty thief stealing personal items from the patients at a new detox centre. Jo Parrish and PJ accidentally come across Archie when they notice a woman running through the grounds of the centre, fleeing from an imaginary demon. When detox patients claim they've a seen ghost rumours of a murder at Layton Hall in the 1800s just fuel the gossip. A determined Jo pushes PJ to continue investigating the mysterious happenings at the detox centre in order to get to the bottom of the ghost story.