Twenty-three years ago, Maggie D'arcy's family received a call from the Dublin police. Her cousin Erin has been missing for several days. Maggie herself spent weeks in Ireland, trying to track Erin's movements, working beside the police. But it was to no avail: No trace of her was ever found. The experience inspired Maggie to become a cop. Now, back on Long Island, more than 20 years have passed. Maggie is a detective and a divorced mother of a teenager. When the Gardaí call to say that Erin's scarf has been found and another young woman has gone missing, Maggie returns to Ireland.

Was the biggest case of his career the worst mistake he ever made? Ten years ago, DCI Jack Logan stopped the serial child-killer dubbed "Mister Whisper", earning himself a commendation, a drinking problem, and a broken marriage in the process...When another child disappears a hundred miles north in the Highlands, Jack is sent to lead the investigation and bring the boy home. But as similarities between the two cases grow, could it be that Jack caught the wrong man all those years ago?

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.

Flynn was only a teenager when her parents were killed in a terrible accident. Too young to lose her parents, too young to take on responsibility for her younger sister Kaiya, too young to protect Kaiya from the harshness of their new lives in the following years. Desperate to help her sister, Flynn reaches out to Willa Tomlinson, a grief counsellor renowned for helping her patients cope with profound loss. Under Willa’s influence and care, Kaiya finally seems to turn a corner, joining the climate action collective that Willa leads.

As an undercover police officer, Rob Langton is used to terrifying situations. But his new assignment is the most dangerous yet – to infiltrate the notorious Carter family, and bring its patriarch Geraint to justice. After gaining Geraint’s trust, Rob finds himself becoming the criminal's right-hand man. The deeper Rob gets, the more danger he’s in. Then Geraint’s horrific plan comes to light – a bomb in a public place, designed to stir up anti-immigrant sentiment. Rob is the only person who can stop the carnage, but time is running out.

'Did you have to kill them all?' It's the question Gabe Ahern has been running from since he bust open a major criminal operation - and left a dozen men dead. He knows that one day the 'bad guys' will come for revenge. A skilled dog-trapper, Gabe has one rule: leave no sign, leave no trace. And for the last year he's been successfully hiding out on a friend's remote cattle property in the Pilbara.

Responding to reports of deadly screams in the Ironbridge Gorge, Detective Sergeant Jenna Morgan is first on the scene to investigate. As the search intensifies, Jenna soon discovers her sister Fliss’ severely injured Dalmatian, Domino, and the naked, tortured body of an unknown woman.

A lost girl. A mysterious house in Ireland. An invitation that changes everything. Twenty years ago, at the end of a hot long Irish summer, three sisters walk down to the cool lake at their home, Swan Hall. As Maeve and Aisling watch their beautiful younger sister Nuala laughing and splashing, it is hard to hide their envy of her. But later that morning, when Nuala drowns, they are devastated. Now, as Iris scatters the ashes of her beloved mother Aisling onto the golden leaves of Central Park, she feels very alone.

Recently engaged and deeply ensconced in her third year of surgical residency in Chicago, Emily Hartford gets a shock when she is called home to Freeport, Michigan, the small town she fled a decade ago after the death of her mother. Her estranged father, the local medical examiner, has had a massive heart attack. At the hospital, she finds her father in near total denial of the seriousness of his condition. He insists that the best thing Emily can do to help him is to take on the autopsy of a senator's teen daughter whose sudden, unexplained death has just rocked the sleepy town.

When a landslip on Pembrokeshire’s stunning coastal path reveals the harrowing remains of two bodies, ex-DCI Evan Warlow’s quiet retirement is shattered.