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.

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.

It was supposed to be the trip of a lifetime, a final adventure before settling down. But after a perfect start, an encounter with a young couple on a night train forces Daniel and Laura to cut their dream trip short and flee home. Back in London, Daniel and Laura vow never to talk about what happened that night.

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.

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.

There are two sides to every secret. When her beloved father dies, Josie is devastated to uncover a secret life he has led with another family: another house, another woman, and a half sister, Valentina. Born in the same week, in the same hospital, they look so physically alike they could be mistaken for twins. But the similarities end there.... Josie is sweet and reserved, a counsellor with the perfect boyfriend and the perfect life. Valentina is damaged and reckless, and she always gets what she wants.

Joe never wanted to come back to Arnhill. After the way things ended with his old gang - the betrayal, the suicide - and what happened when his sister went missing, the last thing he wanted to do was return to his hometown. But Joe doesn’t have a choice, not after a chilling email surfaces in his inbox: I know what happened to your sister. It’s happening again....

Crime reporter Eve Singer's career is on the downward slope when a spate of bizarre murders - each carefully orchestrated and advertised like performance art - begin in her territory. Covering these very public crimes revives her byline, and when the killer contacts Eve to discuss her coverage of his crimes, she is suddenly on the inside of the biggest murder investigation of the decade. But as the killer becomes increasingly obsessed with her, Eve realizes there's a thin line between inside information and becoming an accomplice to murder.

When Helen and Sean Phillips go out for the evening, leaving their teenage daughter babysitting little Frankie, they have no idea that they are about to face every parent's greatest fear. Detective Inspector Patrick Lennon is hopeful that the three children who have been abducted in this patch of south-west London will be returned safe and well. But when a body is found in a local park, Lennon realizes that time is running out - and that nothing in this case is as it seems.…

It's Maya and Jamie's anniversary, and she waits with excitement for him to return home for a celebratory dinner. There's a knock at the door. It's the police. Jamie has been found hanging in a local wood. His death is ruled a suicide, but Maya doesn't believe Jamie would take his own life. Something isn't right. Someone has broken into her house. Someone is watching her. And someone has gone to great lengths to cover up what Jamie was doing before he died.

Jack Warr is a young DC with the Metropolitan Police. Charming but aimless, Jack can't seem to find his place in the world - until he's drawn into an investigation that turns his life upside down. In the aftermath of a fire at a derelict cottage, a badly charred body is discovered, along with the burnt remnants of millions of stolen, untraceable bank notes - the hidden legacy of Dolly Rawlins and her gang of Widows. Jack's assignment to the case coincides with an investigation into his own past.

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....

A woman gets involved with a psychic who may be able to find her missing son. Five footprints are the only sign that four-year-old Daniel Buck was ever here. Every day, Anna Buck guards the little prints in the cement. Polishing them to a shine. Keeping them safe. Spiraling toward insanity. Anna is desperate for hope, which she's not getting from the police or her husband, James. So when a woman tells her she's found a true psychic, a "shut eye", she grasps at it. Maybe he can tell her what happened to her son.

Profoundly deaf since early childhood, Caleb has always lived on the outside - watching and picking up tell-tale signs people hide in a smile, a cough or a kiss. When a childhood friend is murdered, a sense of guilt and a determination to prove his own innocence sends Caleb on a hunt for the killer. But he can’t do it alone....