Kate Bennett, presenter of paranormal investigation cable TV show, Where the Dead Walk, isn't sure what she believes, other than she seems cursed to lose all those closest to her. After investigating a neglected cliff-top house, empty for a decade because it's "haunted", Kate is convinced a spirit within holds the answers to a childhood she can't remember and an unimaginable crime.

When molecular biologist Holly Reilly is forced to go on the run carrying a piece of technology with the potential to change what it even means to be human, she calls the only person she trusts with the skills necessary to keep her alive: her estranged husband Gabriel.

When the chief suspect in the notorious "peekaboo cop killer" case blew himself up, almost taking lead investigator DCI Duncan Bone with him, the psychologically damaged detective thought his days on the force were over. But, when another PC is abducted and murdered in the same deranged peekaboo fashion, Bone is persuaded to return to lead the new investigation.

Headstrong journalist Anna Rothman knows what suicide looks like - her own husband killed himself five years ago. When Elly Swift, an agitated passenger beside her on a train, leaves a locket in Anna's bag before jumping onto the tracks, Anna starts asking questions. But everything points to suicide and the police close the case. However, Anna believes that Elly's fears for Toby, her young nephew who was snatched from St. Stephen's church six months ago, fail to explain the true reason behind Elly's distress.

You think you know the truth about the people you love. But one discovery can change everything.... Eight-year-old Billy goes missing one day, out flying his kite with his sister Rose. Two days later he is found dead. Sixteen years on, Rose still blames herself for Billy's death. How could she have failed to protect her little brother? Rose has never fully recovered from the trauma, and one of the few people she trusts is her neighbour Ronnie, who she has known all her life.

Dear Elizabeth, I've been watching you. I hope to see you...soon. Liz Cafferky is on the up. Rescued from her dark past by the owner of a drop-in centre for older men, Liz soon finds herself as the charity's face - and the unwilling darling of the Dublin media. Amidst her claustrophobic fame, Liz barely notices a letter from a new fan. But then one of the centre's clients is brutally murdered, and Elizabeth receives another, more sinister note. Running from her own ghosts, Liz is too scared to go to the police.

He’s the Man With No Name and the owner of No Alibis, a mystery bookshop in Belfast. But when a detective agency next door goes bust, the agency’s clients start calling into his shop asking him to solve their cases. It’s not as if there’s any danger involved. It’s an easy way to sell books to his gullible customers and Alison, the beautiful girl in the jewellery shop across the road, will surely be impressed. Except she’s not – because she can see the bigger picture.

Thirteen years ago someone did something very bad to Anna. Now it's her turn to get even. Anna lives a solitary existence, taking solace in order and routine. Her only friend is the lonely old lady next door. She doesn't like to let people to get too close - she knows how much damage they can do. Then one ordinary day, Anna witnesses a devastating road accident and recognises the driver as Carla, the woman who ruined her life all those years ago.

A teacher goes missing under suspicious circumstances and a man is murdered at a local reservoir. For Detective Robyn Carter, there's no obvious link between the cases. But as she starts to delve into them, her investigations lead her to Abigail, perfect wife and mother to beautiful little Izzy. What was Abigail's connection to the victims? And why is she receiving threatening messages from an anonymous number?

'It's been 11 months since I sat in my teenage bedroom and my mundane life was cast into madness. I suppose you could argue it was a lot longer if you include the 30-year trip back to 1986.' After his miraculous weekend in 1986, Craig Pelling returned to a future he could never have envisaged. Even by his own hapless standards, his plans have spectacularly backfired. Does he face a bleak, lonely future, or does he try to seek answers? Either way, an emotional roller coaster beckons.

Rose Denton wakes up in her car. She has no memory of how she got there. But she knows something bad happened.... There’s blood on the windscreen and bonnet - but it’s not hers, and there’s no sign of anything or anyone she might have hit. The last thing she remembers is being in a hotel on a business trip, but now she’s miles away. Back home, her daughter’s boyfriend is missing. The last thing he did was argue with Rose over money. He left no note, no text, no clue as to his whereabouts. The police have questions - and so does Rose.

Last year, Tom and Caroline Johnson chose to end their lives, one seemingly unable to live without the other. Their daughter, Anna, is struggling to come to terms with her parents' deaths, unwilling to accept the verdict of suicide. Now with a baby herself, Anna feels her mother's absence keenly and is determined to find out what really happened to her parents. But as she digs up the past, someone is trying to stop her. Sometimes it's safer to let things lie....

Everyone’s invited. Someone will never leave. In a grand townhouse rented specially for the evening, Hannah beams at her guests under the sparkling chandelier. Her sisters, her mother and aunt, her best friends...although she’ll miss them all so much when she moves away, tonight is about celebrating the happy times and raising a toast to the future. But the next morning, one of the guests is found cold and lifeless in their pristine white bed. Hannah is desperate to call the police. After all, it must have been an accident.

When Zoë Boehm agrees to track down the gang who knocked over Sweeney’s jewellery shop, she certainly doesn’t expect to wind up in a coffin. But she’s about to become entangled with a strange collection of characters, starting with suicidal Tim Whitby, who’s dedicating what’s left of his life to protecting Katrina Blake from her late husband’s brothers, Arkle and Trent. Unfortunately for Zoë, Arkle has a crossbow, Tim has nothing left to lose and even Katrina has her secrets.

The people who call End of the Line need hope. They need reassurance that life is worth living. But some are unlucky enough to get through to Laura. Laura doesn’t want them to hope. She wants them to die. Laura hasn’t had it easy: she's survived sickness and a difficult marriage only to find herself heading for forty, unsettled and angry. She doesn't love talking to people worse off than she is. She craves it. But now someone’s on to her - Ryan, whose world falls apart when his pregnant wife ends her life, hand in hand with a stranger.

He’s the Man With No Name and the owner of No Alibis, a mystery bookshop in Belfast. But when a detective agency next door goes bust, the agency’s clients start calling into his shop asking him to solve their cases. It’s not as if there’s any danger involved. It’s an easy way to sell books to his gullible customers and Alison, the beautiful girl in the jewellery shop across the road, will surely be impressed. Except she’s not – because she can see the bigger picture.

Dr Cat Lupo aches for another child despite the psychosis which marked her first pregnancy. So when Ruby Winter, a small girl in need of help, arrives in the middle of the night, it seems like fate. But as the events behind Ruby's arrival emerge - her mother's death, her connection to Cat - Cat questions whether her decision to help Ruby has put her own daughter at risk.

Owen Hall drives into a petrol station to let his passenger use the facilities. She never comes back - and what's more, it seems she never even made it inside. When Owen raises a fuss, the police are called - and soon identify Owen himself as a possible culprit, not least because they already have him in the frame for another more sinister crime. Owen's always been a little different, and before long others in the community are baying for his blood. But this is a case where nothing is as it seems - least of all Owen Hall....

'And in Edinburgh of all places. I mean, you never think of that sort of thing happening in Edinburgh, do you...?' 'That sort of thing' is the brutal abduction and murder of two young girls. And now a third is missing, presumably gone to the same sad end. Detective Sergeant John Rebus, smoking and drinking too much, his own young daughter spirited away south by his disenchanted wife, is one of many policemen hunting the killer.

Everything wrong with Craig Pelling's life can be traced back to one moment in 1986. But fate hasn't finished with him yet. When a series of unfortunate events pushes him to breaking point, he's thrown a lifeline - a trip back to 1986, to relive one weekend as his 16-year-old self. Does the key to a better future lie in reverting one decision he made over 30 years ago?

'It's been 11 months since I sat in my teenage bedroom and my mundane life was cast into madness. I suppose you could argue it was a lot longer if you include the 30-year trip back to 1986.' After his miraculous weekend in 1986, Craig Pelling returned to a future he could never have envisaged. Even by his own hapless standards, his plans have spectacularly backfired. Does he face a bleak, lonely future, or does he try to seek answers? Either way, an emotional roller coaster beckons.

On a remote Highland mountain, the body of Elaine Buxton is burning. All that will be left to identify the respected lawyer are her teeth and a fragment of clothing. In the concealed back room of a house in Edinburgh, the real Elaine Buxton screams into the darkness…. Detective Inspector Luc Callanach has barely set foot in his new office when Elaine’s missing persons case is escalated to a murder investigation. Having left behind a promising career at Interpol, he’s eager to prove himself to his new team.

Dear Elizabeth, I've been watching you. I hope to see you...soon. Liz Cafferky is on the up. Rescued from her dark past by the owner of a drop-in centre for older men, Liz soon finds herself as the charity's face - and the unwilling darling of the Dublin media. Amidst her claustrophobic fame, Liz barely notices a letter from a new fan. But then one of the centre's clients is brutally murdered, and Elizabeth receives another, more sinister note. Running from her own ghosts, Liz is too scared to go to the police.

A body is discovered with her throat cut and her daughter believed missing. DCI Foster quickly sees parallels with the disappearance of a teenager three years earlier. With hopes fading, he calls on genealogist Nigel Barnes to piece together the links between the families of the two girls. The trail leads back to 1890, and a young couple fleeing a terrible crime in their past....

When Professor Alan Tunbridge is discovered in his office with his throat slashed, the suspects start queuing up. The brilliant but unpleasant microbiologist had a genius for making enemies. For Warren Jones, newly appointed Detective Chief Inspector to the Middlesbury force, a high-profile murder is the ideal opportunity. He’s determined to run a thorough and professional investigation but political pressure to resolve the case quickly and tensions in the office and at home make life anything but easy.

A missing schoolgirl is found buried in the Dublin Mountains, hands clasped together in prayer, two red ribbons in her hair. Twenty-four hours later, a second schoolgirl is found in a shallow grave - her body identically arranged. The hunt for the killer is on. The police call in criminal psychologist Kate Pearson to get inside the mind of the murderer before he strikes again. But the more Kate discovers about the killings, the more it all feels terrifyingly familiar.

When a house explodes in a quiet Oxford suburb and a young girl disappears in the aftermath, Sarah Tucker becomes obsessed with finding her. Accustomed to dull chores in a childless household and hosting her husband’s wearisome business clients for dinner, Sarah suddenly finds herself questioning everything she thought she knew, as her investigation reveals that people long believed dead are still among the living, while the living are fast joining the dead.

Time's up. You're Next. "All he had to do was name the woman he wanted. It was that easy. They would do all the hard work. "Detective Sergeant Mark 'Heck' Heckenburg is investigating the disappearance of 38 different women. Each one was happy and successful until they vanished without a trace. Desperate to find her missing sister, Lauren Wraxford seeks out Heck's help.

Here in Slough House, the intelligence service's home for inept spies, it's beginning to feel a lot like Christmas. Roddy Ho is used to being the one the slow horses turn to when they need miracles performed, and he's always been Jackson Lamb's Number Two. So when Lamb has a photograph that needs doctoring, it's Ho he entrusts with the task. Christmas is a time for memories, but Lamb doesn't do memories—or so he says. But what is it about the photo that makes him want to alter it? How would the slow horses cope if Roddy Ho didn't exist?

Margot Lewis is a teacher at an exclusive high school in the English university town of Cambridge. In her spare time, she writes an advice column, "Dear Amy", for the local newspaper. When one of Margot's students, 15-year-old Katie, disappears, the school and the town fear the worst. And then Margot gets a "Dear Amy" letter unlike any of the ones she's received before. It's a desperate plea for rescue from a girl who says she is being held captive and in terrible danger - a girl called Bethan Avery, who was abducted from the local area 20 years ago and never found.