When a woman's body is discovered in a cathedral and hours later a young man is found hanging from a tree outside his home, Detective Lottie Parker is called in to lead the investigation. Both bodies have the same distinctive tattoo clumsily inscribed on their legs. It's clear the pair are connected, but how? The trail leads Lottie to St Angela's, a former children's home, with a dark connection to her own family history. Suddenly the case just got personal.

When nineteen-year-old university student Emma goes missing, Detective Inspector Gareth Gravel is called in. But what is a simple missing person case soon turns into something much darker as Gravel’s inquiries lead him to the graves of five young women - each of whom looks just like Emma. With a serial killer on the loose and his latest victim already in his control, can the police find Emma in time? Or will Emma have to save herself?

When a body of a woman is discovered at a lighthouse in the Icelandic town of Akranes, it soon becomes clear that she’s no stranger to the area. Chief Investigating Officer Elma, who has returned to Akranes following a failed relationship, and her collegues Sævar and Hörður commence an uneasy investigation which uncovers a shocking secret in the dead woman’s past that continues to reverberate in the present day.

What will they risk for answers? Picturesque Daylesford has a darker side. Melbourne writer Georgie Harvey heads to the mineral springs region in central Victoria to look for a missing farmer, and soon links the woman’s disappearance with the unsolved mystery surrounding her husband. Meanwhile, maverick police officer and solo dad John Franklin is working a case that’s a step up from Daylesford’s usual soft crime: A stalker targeting single mothers.

A life has been taken. But whose life is it? On a stifling hot day, former journalist Dee Doran finds the crumpled body of her friend at the roadside. Katie and her little boy, Jake, have been a light in Dee’s otherwise desolate life - now a woman is dead and a child is missing. Katie has been keeping secrets for a long time. Years earlier, she fell for the wrong person. But he was in love with someone else; who he couldn’t have but couldn’t keep away from. When jealousy and desire spilled over into murder Katie hid the truth, and has been pretending ever since.

FBI Agent Tara Mills is young, brilliant and new to the force. With a promising career in front of her, she faces the ultimate test when she is assigned the case. It soon proves to be more challenging than she ever could have imagined – an impossible riddle that leaves even her seasoned partner stumped. 

Nothing stays buried forever. Lifeboat volunteer DI Shona Oliver receives a Mayday call coming from Kilcatrin Island. Upon the beach is the badly burned body of a man, and a boy lies gravely injured nearby. Strewn around them are scores of Second World War incendiary bombs, presumably washed up by the tide from Beaufort's Dyke, an offshore arms dump deep in the Irish Sea. The dead man is a local fisherman – his son the other victim – and it rocks the tight-knit community on the shores of the Solway Firth. As lead detective, Shona has to maintain a professional distance.

The Baxter house has been on the estate agent’s books for decades. Dilapidated and near derelict, nobody is interested in it. But, for one buyer, the remote location and rat-infested cellar are perfect. For the first year, Mackenzie’s marriage to Derek was ideal. But Derek believes she is having an affair, and when she realises her husband is becoming controlling, she knows she’s made a terrible mistake. When she threatens to leave and then disappears, no one believes she has been abducted.

Suspended from duty, Detective Frølich is working as a private investigator when his girlfriend's colleague asks for his help with a female asylum seeker who the authorities are about to deport. She claims to have a sister in Norway and fears that returning to her home country will mean instant death. Frølich quickly discovers the whereabouts of the young woman's sister, but things become increasingly complex when she denies having a sibling, and Frølich is threatened off the case by the police.

Icelandic sisters Áróra and Ísafold live in different countries and aren‘t on speaking terms, but when their mother loses contact with Ísafold, Áróra reluctantly returns to Iceland to find her sister. But she soon realises that her sister isn’t avoiding her...she has disappeared. As she confronts Ísafold’s abusive, drug-dealing boyfriend Björn, and begins to probe her sister’s reclusive neighbours, Áróra is led into an ever-darker web of intrigue and manipulation.