Winter in Tiverton, and Constable Paul Hirschhausen has a snowdropper on his patch. Someone is stealing women's underwear, and Hirsch knows how that kind of crime can escalate. Then two calls come in: a child abandoned in a caravan, filthy and starving. And a man on the rampage at the primary school. Hirsch knows how things like that can escalate, too. An absent father who isn't where he's supposed to be; another who flees to the back country armed with a rifle. Families under pressure can break. But it's always a surprise when the killing starts.

In the desolate outback town of Finnigans Gap, police struggle to maintain law and order. Thieves pillage opal mines, religious fanatics recruit vulnerable youngsters and billionaires do as they please. Then an opal miner is found crucified and left to rot down his mine. Nothing about the miner's death is straight-forward, not even who found the body. Homicide Detective Ivan Lucic is sent to investigate, assisted by inexperienced young investigator Nell Buchanan.

Summer on the Peninsula. The heat’s ramping up, the usual holiday madness building. D.I. Hal Challis is already recycling his shower water and starting to dread Christmas. But this year there’s something more. Women abducted and murdered on the Old Highway. A pall of fear over the scorched paddocks. The media are demanding answers - and Challis’s sleepy beat is set to explode.

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.... 

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.

After a lifetime of bad decisions, PI Caleb Zelic is finally making good ones. He's in therapy, his business is recovering and his relationship with his estranged wife, Kat, who is pregnant after a devastating history of miscarriages, is on the mend after heading for divorce. However, life has other plans in store for him. Soon Caleb is drawn into the tangled world of his troubled ex-partner Frankie, whose addictions had her working with criminals and endangering Kat - and this time their pairing leads to a confrontation with the cops. 

'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.

Kieran Elliott's life changed forever on a single day when a reckless mistake led to devastating consequences. The guilt that haunts him still resurfaces during a visit with his young family to the small coastal town he once called home. Kieran's parents are struggling in a community which is bound, for better or worse, to the sea that is both a lifeline and a threat. Between them all is his absent brother, Finn. When a body is discovered on the beach, long-held secrets threaten to emerge in the murder investigation that follows.

Detective Inspector Karen Eiken Hornby has returned to the main island, Heimö, after many years in London and has worked hard to become one of the few female police officers in Doggerland. So, when she wakes up in a hotel room next to her boss, Jounas Smeed, she knows she's made a big mistake. But things are about to get worse: later that day, Jounas's ex-wife is found brutally murdered. And Karen is the only one who can give him an alibi.

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.

Disgraced detective Kamil Rahman moves from Kolkata to London to start afresh as a waiter in an Indian restaurant. But the day he caters a birthday party for his boss's friend on Millionaire's Row, his simple new life becomes rather complicated. The event is a success, the food is delicious, but later that evening the host, Rakesh, is found dead in his swimming pool.

Forty years ago, Steven Smith found a copy of a famous children's book by disgraced author Edith Twyford, its margins full of strange markings and annotations. Wanting to know more, he took it to his English teacher Miss Iles, not realising the chain of events that he was setting in motion. Miss Iles became convinced that the book was the key to solving a puzzle and that a message in secret code ran through all Twyford's novels. Then Miss Iles disappeared on a class field trip, and Steven has no memory of what happened to her.

For some people, trouble just finds them. Thirty years ago, Vincent King became a killer. Now, he's been released from prison and is back in his hometown of Cape Haven, California. Not everyone is pleased to see him. Like Star Radley, his ex-girlfriend and sister of the girl he killed. Duchess Radley, Star's 13-year-old daughter, is part-carer, part-protector to her younger brother, Robin - and to her deeply troubled mother.

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. 

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.