On a bright sunny day in Port Silver, ex-Journalist Martin Scarsden misses a call from his girlfriend, Mandy. Checking his voicemail later, all he hears is her terrified scream before the phone cuts off. Back at the house, he finds a policeman unconscious on the floor and Mandy gone. So starts a twisting tale of intrigue and danger, as Martin probes the past of the woman he loves, a woman who has buried her former life deep. And for the first time, Mandy finds denial impossible, now that the body of a man has been discovered - a man to whom she was engaged to marry.

Constable Paul Hirschhausen runs a one-cop station in the dry farming country south of the Flinders Ranges. He's still new in town but his community work - welfare checks and a light touch - is starting to pay off. Now Christmas is here and, apart from a grass fire, two boys stealing a vehicle and Brenda Flann entering the front bar of the pub without exiting her car, Hirsch's life has been peaceful. Until he's called to an incident on Kitchener Street, a strange and vicious attack that sickens the community.

Hirsch is a whistle-blower. Formerly a promising metropolitan officer, now hated and despised. Exiled to a one-cop station in South Australia’s wheatbelt. Threats. Pistol cartridge in the mailbox. So when he heads up Bitter Wash Road to investigate gunfire and finds himself cut off without backup, there are two possibilities. Either he’s found the fugitive killers thought to be in the area - or his ‘backup’ is about to put a bullet in him. He’s wrong on both counts. But the events that unfold turn out to be a lot more sinister.

A cold case re-opened. In 1997, in a basement flat in Hackney, Isla Green is awakened by a call in the middle of the night: her father is under suspicion of Mandy’s murder. A devastating secret. How well does Isla know her father? Is he capable of doing something terrible? And is there another secret in their community – a conspiracy of silence which stretches deep into Australia’s past?

Mina McCreery's sister Evelyn disappeared 19 years ago. Her life has been defined by the intense public interest in the case. Now an anxious and reclusive adult, she lives alone on her family's destocked sheep farm. When Lane, a private investigator, approaches her with an offer to reinvestigate the case, she rejects him. The attention has had nothing but negative consequences for her and her family, and never brought them closer to an answer. 

Ryan Wilkins grew up on a trailer park, a member of what many people would call the criminal classes. As a young Detective Inspector, he's lost none of his disgust with privileged elites - or his objectionable manners. But he notices things; they stick to his eyes. His professional partner, DI Ray Wilkins, of affluent Nigerian London heritage, is an impeccably groomed, smooth-talking graduate of Balliol College, Oxford. You wouldn't think they would get on. They don't. But when a young woman is found strangled at Barnabas Hall, they're forced to. 

Detective Eira Sjödin is just old enough to remember the summer when 16-year-old Lina Stavred went missing. Her entire community was haunted by the disappearance - especially when Olof Hagström, just 14 himself, confessed to her murder. That was two decades ago. No one in their small rural community has seen or heard from him since, but the spectre of his crime lingers in the forests around the town. But now Olof is back, and he stands accused of another brutal crime.

'Jesus Christ. I found one.' These words are blurted over the phone to Constable Snowy Lane, who is preoccupied with no more than a ham sandwich and getting a game with the East Fremantle league side on Saturday. They signal the beginning of a series of events that are to shake Perth to its foundations. It is 1979, and Perth is jumping with pub bands and overnight millionaires. 'Mr Gruesome' has just taken another victim. Snowy's life and career are to be forever changed by the grim deeds of a serial killer and the dark bloom spreading across the City of Light.

Darwin, Summer, 1963. The humidity sat heavy and thick over the town as Senior Constable Ned Potter looked down at a body that had been dragged from the shallow marshland. He didn't need a coroner to tell him this was a bad death. He didn't know then that this was only the first. Or that he was about to risk everything looking for answers. 

Wyatt robs banks and payroll vans. Most men like him are dead or in jail, but Wyatt stamps a cold, pitiless style on his heists and has never been caught. Now his funds are low and his luck is running out - until the day Anna Reid explains about the kickback in her partner’s safe. But other players are involved. In Wyatt’s world, there is no yielding, no redemption, and when he’s crossed, the outcome is inevitable.

Twenty years ago, Charlie Deravin's mother went missing near the family beach shack—believed murdered; body never found. His father has lived under a cloud of suspicion ever since. Now Charlie's back living in the shack in Menlo Beach, on disciplinary leave from his job with the police sex-crimes unit, and permanent leave from his marriage. After two decades worrying away at the mystery of his mother's disappearance, he's run out of leads. Then the skeletal remains of two people are found in the excavation of a new building site—and the past comes crashing in on Charlie.

Slough House is Jackson Lamb’s kingdom; a dumping ground for members of the intelligence service who’ve screwed up: left a secret file on a train, blown surveillance, or become drunkenly unreliable. They’re the service’s poor relations – the slow horses – and bitterest among them is River Cartwright, whose days are spent transcribing mobile phone conversations.

Detective Alan Auhl does things his own way - and gets results. He works cold cases now. Like the death of John Elphick - his daughters are still convinced he was murdered, the coroner not so sure. Or the skeleton that’s just been found under a concrete slab. Or the doctor who killed two wives and a girlfriend and left no evidence at all.... 

Is Alice here? Did she make it? Is she safe? In the chaos, in the night, it was impossible to say which of the four had asked after Alice's welfare. Later, when everything got worse, each would insist it had been them. Five women reluctantly pick up their backpacks and start walking along the muddy track. Only four come out the other side.

The narrow alleys are brimming with jazz bars, bookies, black-shirts, ponces and tarts, so when a body is found above the Windmill Club, detectives are content to dismiss the case as just another young woman who topped herself early. But Geats - a good man prepared to be a bad one if it keeps the worst of them at bay - knows the dark seams of the city. Working with his former partner, mercenary Flying Squad Sergeant Mark Cassar, Geats obsessively dedicates himself to finding a warped killer.