It’s Christmas in Sheffield. But not everyone is enjoying the festive season. A man has been found brutally murdered in his own home. The victim is Iain Kilbride, a once-famous TV star who has faded into obscurity. All signs point to a break-in, but why has nothing been taken? For DCI Matilda Darke, this is the perfect chance to prove her newly formed Murder Investigation Team are up to the task. Matilda suspects the clue to finding the killer lies in Iain’s past, but she’s about to discover how dark that past really is....

For years, Aidan Cullen has dreamed of becoming a successful crime writer. When his hard work finally pays off and his first book is published, what should have been a night of celebration unravels into an evening of horror. Left for dead after a brutal attack, trauma leaves him paranoid and reclusive, and he retreats to the remote countryside with only his dog Nanook for company. With the world kept at arm’s length, he begins to feel safe. That is, until a woman is murdered at the end of his road.

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?

Rose, newly married to surgeon Nathan Winter, wants for nothing in her perfect life–except the one thing she can’t have: for her sister, Daisy, who’s lying unresponsive in a coma, to wake up. Daisy’s psychologist has been a constant presence at her hospital bedside. But he’s taken an unnatural interest in Rose, and now he’s made a shocking accusation: that Rose’s husband is a psychopath and that she’s in danger.

Two days ago, the Wilson family checked into the imposing, glass-fronted Lodge, surrounded by snow and perched perilously on the edge of a cliff looking out to a gray sea. Not everyone was looking forward to the family get-together. But mother-in-law Angela insisted the winter trip would help heal their rifts....

As I sit in her dimly lit bedroom, surrounded by flickering candles, I feel the crushing weight of my daughter’s absence. It's been two years since Layla was murdered. The police have searched tirelessly for her killer, but they've found nothing – it's like whoever did it vanished into thin air. My once-perfect marriage is falling apart, we can hardly look at each other anymore. Our ten-year-old son Gale is struggling. He’s changed since she died. He’s more secretive and also…

At loose ends after the devastating death of her mother, Una Richardson responds to an advertisement for a ladies’ companion, a position that leads her into the wealthy, secluded world of Mrs. Elspeth McKenzie. But Elspeth's home isn’t the comforting haven it seems. Kathryn, her cold and bitter daughter, resents Una's presence. More disturbing is evidence suggesting two girls lived here before her.

Twenty-two-year-old Olivia has been missing for one day…and counting. She was last seen on CCTV, entering a dead-end alley. And not coming back out again. Julia, the detective heading up the search for Olivia, thinks she knows what to expect. A desperate family, a ticking clock, and long hours away from her husband and daughter. But she has no idea just how close to home this case is going to get.

On a summer's night in 1994, 16-year-old Flora Powell vanished from her sleepy seaside town without a trace. Their hearts shattered, Flora’s mother, her sister Heather, and Heather’s best friend Jess had to somehow carry on not knowing what happened. Twenty-five years later, tragedy strikes again when Heather walks into a stranger's house and allegedly kills two people in cold blood. Why would this loving wife and doting new mother commit such a heinous crime? Jess, now a reporter, returns to the hometown she left behind to cover the case and dig for answers.

In the summer of 2006, Emma Price watched helplessly as her six-year-old son's red coat was fished out of the River Ouse. It was the tragic story of the year - a little boy, Aiden, wandered away from school during a terrible flood, fell into the river, and drowned. His body was never recovered. Ten years later Emma has finally rediscovered the joy in life...until Aiden returns.

When a 15-year-old girl fails to make it home after school, DI Heather Filson believes she’s dealing with just another teenage runaway. The girl’s grandfather, a notorious Glasgow gangster, disagrees. Convinced one of his underworld enemies has grabbed her, he’s prepared to bathe the city in blood in order to bring his princess home.

I stand in the mortuary and take a deep breath before identifying the body of the man I’ve been married to for 26 years. Victor and I built Serenity Falls, a successful couples’ retreat, together. Honesty and trust were the bedrocks of our marriage, and we helped other couples repair their relationships too.

Running away from a past she’d rather forget, Doctor Alison Wilson has moved to a new town to take up the role of Medical Officer at failing hospital St Margaret’s. Tasked with shaking things up, she quickly learns that things are worse than they initially seem: patient records are in disarray, staff morale is low, and there’s something afoot that she can’t quite put her finger on As Alison starts to dig into the hospital’s past, she gradually discovers a trail of lies that runs deeper and darker than she could have ever imagined.

After twenty years apart, Matthew and Helena have rekindled their college romance and are away in Iceland on their first holiday together. Swept up in the romance on a mountain hike, one moment they are taking the perfect photo, the next Helena is hanging from the cliff edge…

Gemma Robinson comes into Elliot’s life like a whirlwind, and they marry and settle into his home. When she asks him if her parents can come to stay for a couple of weeks, he is keen to oblige - he just doesn’t quite know what he’s signing up for. The Robinsons arrive with Gemma’s sister, Chloe, a mysterious young woman who refuses to speak or leave her room.