Two-year-old Abigail is fast asleep in the back of the car, clutching her little red lion. Tony, her father, steps out onto the pavement. The man he’s meeting punches him in the face, knocking him to the ground. Before it all goes black, Tony sees his car speed away—with his little girl inside. When he finally gets home after the worst day of his life, the house is empty. His wife is gone too. The place is ransacked and the kitchen is streaked with blood.

In the early hours of a chilly autumn morning, Harrison Lane races to shadowy Fenton Woods. Beneath an ash tree is the lifeless body of a young boy – four guttered candles surround him, a makeshift cross pushed into the earth nearby. Harrison tenses – who would want to hurt an innocent child?

New to the local police force, when a body is found on a secluded mountain trail Delaney is called to the scene. Surrounded by imposing pine trees, a young woman lies still in the moonlight. Gazing into her dark, unblinking eyes Delaney’s heart pounds wildly in her chest as she recognizes the victim. It’s her beloved sister-in-law: Kateena’s mother, Lila. But she died weeks before. Didn’t she?

Leah and her three best friends get changed into their pyjamas, eat pizza, and argue about what film to watch. They laugh together, until the early hours. But the next morning, Leah blinks open her eyes and sees three empty sleeping bags. The other girls are gone. Twenty years later. In her small hometown, still-haunted Leah has never been able to shake off the rumours and whispers. How could she have slept through it all? She must know what happened.

Detective Sam Helsdown hasn’t seen his daughter Zoe in two years and he’s excited and more than a little nervous to be at the airport picking her up for a visit. She’s 10 years old and has flown on her own for the first time. Flight BA631 from Athens has already landed and soon a trickle of people begins entering Arrivals. Among them is a little girl who runs towards him, head down, and throws herself into his arms saying ‘Daddy!’. But then he looks at her properly. This is not Zoe. This is not his daughter.

Hidden away in an isolated cabin on the edge of her farm, seven-year-old Aisling Connolly shivers as the cold night air whistles through her thin jacket. It’s been two days since the men came, since her mammy told her to run like she’d never run before, to not look back. She hasn’t seen her parents since. And she’s terrified. But when Aisling is finally found by the police, she knows instinctively she can trust Detective Tessa Burns.

When Olivia Blake receives a note, she thinks someone is playing a prank...until she’s lured to an empty house. Then she witnesses a man burning to death and realizes the threat is serious. The problem is she doesn’t know who is after her or why. As she tries to uncover who is tormenting her, someone watches from the shadows - someone who knows the truth about a tragic accident that happened years ago, someone who won’t stop until everyone involved has paid the ultimate price. They say revenge is a dish best served cold, but this killer prefers to play with fire.

It’s the night shift worker who finds them. Huddled in a hospital store cupboard is elderly Edith Higgins. Knifed to death. Sitting behind her is Staff Nurse Lily Frampton, a scalpel clasped in her blood-soaked hand. No one can understand why this kind-hearted, dedicated nurse would brutally murder a frail patient she’s spent months caring for. That same day, mild-mannered schoolteacher Rod Black is found surrounded by the battered bodies of his pupils. Why would a well-respected teacher beat five schoolboys to death?

Single mum Ellie is shown a missing person post on Facebook. It’s of her three-year-old son, Tyler. But he’s right there, holding her hand. Surely this is some kind of prank – she knows her friend Louise can go too far with her jokes sometimes. And Ellie is used to the other mums gossiping at the school gates. But now the other parents are questioning whether Tyler is really her child. Ellie does everything she can to prove the post is fake, but the longer it goes on she knows it is malicious. Who would do this to her? And why?

Duncan Stone is one of the country's most eligible bachelors, and he wants to take me, Callie Parker, on a date. At first I am surprised and flattered, the envy of my friends. Then when our whirlwind romance escalates and he asks me to move in with him, it's like a dream come true. But as I get to really know my new boyfriend, my fairytale turns into a nightmare. Duncan is no Prince Charming. He is the Devil.

When Detective Maria Miller walks up creaking stairs into the attic of the old brownstone she senses this isn’t an ordinary crime scene. The brutality of the murder is enough to shock even an experienced detective like Maria. But there’s something else. An unsettling presence seems to lurk in the shadows sending a chill through Maria’s bones, making her desperate to run back down the stairs and never return. The killing is identical to the murder of an actress sixty years before, a crime that tore a family apart and sent shockwaves through New York City.

I’ve lived on this quiet street for years, in the same house I once shared with my husband and our beloved daughter, Chloe. Now they’re both gone and my home, that used to be filled with laughter, is too quiet, too still. When a little boy I don’t recognize knocks at my door, without a parent in sight, I’m shocked. He trembles with nerves, and I tell him I can help find his mother. But I’m not prepared for what he says next. I’m left frozen, heart pounding in my chest.

Everyone knows about the fight between Kathleen Walsh and her sister on the night she disappeared. For six months, no one has heard from Kathleen. Not her bullying husband, not her teenage son, and not her devastated sister Siobhan. But then Kathleen’s purse is found by a walker high up on the rocky Irish sea cliffs. The only thing inside is a torn scrap of paper with the words ‘HELP ME’. For Siobhan, it’s a chance to find her sister and fix the mistake she made six months ago. But not everyone in the tight-knit community welcomes Siobhan’s interest in the disappearance.

When Detective Madison Harper arrives at a remote summer camp in Shadow Falls, Northern California, her heart breaks for Jenny, the sweet little girl last seen splashing in the lake with her friends before she vanished. Peering into the silent cabins filled with rows of neatly made beds, Madison knows this idyllic place is hiding a terrible secret.

When Ruby Evans is abducted on her way home from volunteering at a nursing home in North Carolina’s Outer Banks, Detective Casey White’s heart breaks for the inconsolable mother. Terrible memories flood back of when her own darling daughter was taken twenty years ago. Pushing her own pain aside, Casey vows to find Ruby and bring her home.