In depression-era Sydney, young Charlie Bristow has vanished without a trace. Enter George 'Magpie' Collins, ex-con turned private investigator, hired to find the troubled youth. But what appears to be a routine missing persons case soon unravels into a web of family secrets, corruption and murder, with ties to a powerful industrialist and a lost diamond chain. As he delves into the shadows of the city, Collins must navigate the murky waters of deception and greed to unmask the killer and bring justice to a broken chain.