Building work at an isolated farm has unearthed more than just the usual remains... two human are discovered, seemingly buried years apart.With little forensic evidence to go on, Detectives Diane Fry and Ben Cooper have to look back into the farm's history, where they uncover decades of abuse of migrant workers. Is the truth to be found somewhere in this piteous history?Or does the answer lie elsewhere, hidden in the ground, and still waiting to be discovered?