April Clarke-Cliveden was the first person Hannah Jones met at Oxford. Vivacious, bright, occasionally vicious, and the ultimate It girl, she quickly pulled Hannah into her dazzling orbit. Together, they developed a group of devoted and inseparable friends—Will, Hugh, Ryan, and Emily—during their first term. By the end of the year, April was dead.

After getting a note demanding his presence, Federal Agent Aaron Falk arrives in his hometown for the first time in decades to attend the funeral of his best friend, Luke. Twenty years ago when Falk was accused of murder, Luke was his alibi. Falk and his father fled under a cloud of suspicion, saved from prosecution only because of Luke’s steadfast claim that the boys had been together at the time of the crime. But now, more than one person knows they didn’t tell the truth back then, and Luke is dead.

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.

"Are you my mummy?" Tessa Markham returns home to find a child in her kitchen. He thinks she’s his mother. But Tessa doesn’t have any children. Not anymore. She doesn’t know who the little boy is or how he got there. After contacting the police, Tessa is suspected of taking the mystery child. Her whole life is turned upside down. And then her husband reveals a secret of his own. Tessa isn’t sure what to believe or who to trust. Because someone is lying. To find out who, she must confront her painful past. But is the truth more dangerous than Tessa realises?

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.

In 1986, Eddie and his friends are on the verge of adolescence, spending their days biking in search of adventure. The chalk men are their secret code, stick figures they draw for one another as hidden messages. But one morning, the friends find a chalk man leading them to the woods. They follow the message, only to find the dead body of a teenage girl. In 2016, Eddie is nursing a drinking problem and trying to forget his past, until one day he gets a letter containing a chalk man — the same one he and his friends saw when they found the body.

My husband was not a monster. No matter what they say.... The day my husband, Michael, stepped in front of a lorry after being questioned by the police, my world fell apart. He was devoted to me and our six-year-old daughter. But they’d connected him to the disappearance of a young mother from our tiny village.

A week's holiday in a luxurious hotel is just what Scotland Yard's Superintendent Duncan Kincaid needs. But his vacation ends dramatically with the discovery of a dead body in the whirlpool bath. Despite a suspicious lack of cooperation from the local constabulary, Kincaid's keen sense of duty won't allow him to ignore the heinous crime, impelling him to send for his enthusiastic young assistant, Sergeant Gemma James. But the stakes are raised significantly when a second murder occurs....

After torrential summer rains uncover a bizarrely tattooed body on a Lake District hillside, a long-disregarded old wives' tale takes on a chilling new plausibility. For centuries, Lakelanders have whispered that Fletcher Christian, made infamous by Mutiny on the Bounty, staged the massacre on Pitcairn so that he could return home. And once there, what if he could tell his story to an old friend and schoolmate, William Wordsworth, who turned it into a long narrative poem—a poem that remained hidden lest it expose Wordsworth to the gallows for harboring a fugitive?

It's been eight grief-filled years since Geniver Loxley lost her daughter, Beth. Once a writer, Gen has settled into a life of half-hearted teaching while her husband, Art, makes his name and their fortune - and pressures her into yet another round of IVF. For Gen, battle-scared from years of failed attempts to get pregnant with a second baby, this feels like a cruel attempt to replace Beth. Life without her child is inconceivable, unbearable - but still it goes on. And then a woman arrives on Gen's doorstep, saying the very thing she longs to hear: that her daughter was not stillborn, but was spirited away as a healthy child....

Out walking near the rain-swelled river running past her small Welsh town, she comes across the body of Amber Morgan. Fabia’s police training tells her instantly that the death is the result of foul play. But no longer in the force, all she can do is call it in. Yet she has mixed feelings when she discovers it is her former colleague, Matt Lambert, newly promoted to chief inspector, who will head the investigation into the girl’s death.

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.

Lizzy Beresford is at home alone when she finds a chilling letter in her kitchen. Someone has been into her home - someone who wishes Lizzy harm. In her little country cottage, with her doting boyfriend, not far from the close-knit village, Lizzy can’t imagine who might want to hurt her. But when the threatening letters keep coming, she starts to suspect everyone around her. Desperate, Lizzy reaches out to her sister, Emma. They haven’t spoken in years, not since the argument that tore them apart. But Emma says: ‘I’ve been receiving letters too....’

My little girl’s room is dark. Her bed is empty. I turn on her unicorn nightlight and bury my face in her pillow, my heart breaking. I know who did this. His name is Samuel Barlow. He has pale sallow skin and red-rimmed icy-blue eyes. But no one will listen. As darkness falls and rain lashes against the window, there’s a knock at my door and I open it to see those same eyes staring back at me. It’s his mother and she says she can help me find my daughter.

Ailsa Calder has inherited half of a house. The other half belongs to a man who disappeared without a trace 27 years ago - her father. Leaving London behind to settle the inheritance, Ailsa returns to the manor, nestled amongst the craggy peaks of the Scottish Highlands, joined by the half-sister who's practically a stranger to her. Ailsa can't escape the claustrophobic feeling that the house itself watches her - as if her dramatic past hungers to consume her.