Nash Rankin is a disgraced cop trying to escape his past—his career was destroyed when he chose to take justice into his own hands. Now he's living a quiet life in a small town caring for the local wildlife and trying to stay away from trouble. Jesse Redpath has a new job in a new town, Satellite—the stormy weather that greets her first few days on the new beat seems like a sign for what's to come. A local has died in what seems like an accident, but Jessie isn't so sure that ‘accident' wasn't planned. All evidence seems to point to Nash, but Jesse's not sure about that either.

In Unamurra, a drought-scarred, one-pub town deep in the outback, two men are savagely murdered a month apart - their bodies elaborately arranged like angels. With no witnesses, no obvious motives and no apparent connections between the killings, how can lone police officer Detective Dana Russo - flown in from hundreds of kilometres away - possibly solve such a baffling, brutal case? Met with silence and suspicion from locals who live by their own set of rules, Dana must take over a stalled investigation with only a week to make progress.

'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.

It's 1930, and the Great Depression is taking hold. In Melbourne, thirteen-year-old Morris Turner, a little anxious by nature, feels more at home gazing at the stars than spending time with his detached father Jude, a detective, and older sister, Lottie. When a young woman is murdered in Jude's home town of Gemini, he is assigned to solve the case. With fear and polio rising in the city, Jude reluctantly takes Morris and Lottie to the small town he left long ago. At the family farm in Gemini, Morris is drawn into a community reeling from a murder and a financial crash. 

When Special Forces veteran Jake Harlow returns to the hamlet of Lorne on the Victorian south-west coast for his younger brother Tom's funeral, he finds a sinister series of notes that suggest Tom's death was no accident. With Tom's best friend Stocky, and ex-girlfriend Lucy, Jake starts to dig into secrets old and new. Who might be targeting the Harlow family, and why? As they get closer to the truth, the danger becomes very real. But can Jake, burdened by scars both physical and mental, still protect anyone - including himself?

Burnt-out from policework, Detective Sergeant George Manolis flies from Australia to Greece for a holiday. Recently divorced and mourning the death of his father, who emigrated from the turbulent Prespes region which straddles the borders of Greece, Albania and North Macedonia, Manolis hopes to reconnect with his roots and heritage. On arrival, Manolis learns of the disappearance of an 'invisible'—a local man who lives without a scrap of paperwork. The police and some locals believe the man's disappearance was pre-planned, while others suspect foul play.

Detective Sergeant Mark Ariti has taken a few days' holiday in Broken Bay at precisely the wrong time. The small fishing town on South Australia's Limestone Coast is now the scene of a terrible tragedy. Renowned cave-diver Mya Rennik has drowned while exploring a sinkhole on the land of wealthy farmer Frank Doyle. As the press descends, Mark's boss orders him to stay put and assist the police operation. But when they retrieve Mya's body, a whole new mystery is opened up, around the disappearance of a young local woman twenty years before.

Recovering addict Eric Johnstone is turning his life around. Then one small moment changes everything, and Eric is sent down a dark path that leads him towards a life-or-death decision. Just months after he took a job at the retirement village in Point Imlay, the tide goes out on the town’s oyster beds, and Eric’s body is revealed. When Senior Detective John Darken’s business card is discovered in Eric’s pocket, J.D. transfers to Point Imlay to help with the investigation. 

Jessie Else disappeared the summer the Lambs came to Magpie Beach. Not that the two events were connected at all, in reality; only in my own head, in my own world. They marked for me the end of a certain quiet time and the start of a more complicated living.

Detective Rebecca Giles has just finished interviewing aging petty crim Sticky Pete over a spate of break-and-enters when a disturbing new report comes in. Twelve-year-old Kayleen Ellis has vanished from her home in Muswellbrook in the Upper Hunter Valley. Hours later, Giles is a local hero, having apparently solved Kayleen's case and the spate of jewellery thefts. Yet the hangover from her celebrations has barely kicked in when the body of young jillaroo Ava Emmerson is discovered in gruesome circumstances on a nearby farm.