When 25-year-old Beth Mullen returns home, expecting to find her twin Rachel waiting for her, the silent house sends a shiver down her spine. She races upstairs to find her beautiful beloved sister cold in her childhood bed, her sparkling blue eyes closed forever, the morning after attending a glittering party.... Newly engaged Detective Lottie Parker knows that Rachel has been murdered the minute she enters the bedroom. Rachel’s neck is bruised and a shard of glass placed in her throat. Confronted with such a horrifying killing, Lottie wastes no time in pursuing every clue. 

One dark winter’s morning, bride-to-be Cara Dunne is found hanging in her home, dressed in her wedding dress, with a lock of hair removed. Detective Lottie Parker is first on the scene. Looking at Cara’s bruised and battered body, she wonders who could have hated her enough to kill her at the happiest time of her life. The case takes a darker turn that afternoon with another shocking discovery - the broken body of a second young woman, pushed from the roof of the hospital where she worked. Fiona Heffernan was also due to be married....

When Amy Whyte and Penny Brogan leave a nightclub in the early hours of Sunday morning and don’t arrive home, their families are beside themselves with worry. Conor Dowling has just been released from prison, a man full of hatred for Amy, the girl who put him behind bars in the first place. The case is given to Detective Lottie Parker when the girls’ blood-soaked bodies are found, days later, in a derelict squat. Chillingly, both girls are clutching silver coins in their hands - what message is this killer leaving behind? All the signs point to Conor, but his alibi is watertight.

One hot summer evening, 11-year-old Mikey Driscoll is on the way home from playing with friends. Two days later, his body is discovered on a bed of wildflowers by some local teenagers. The case is assigned to Detective Lottie Parker, and this time it’s personal. The victim was a close friend of her son, Sean, from the run-down Munbally estate on the other side of town. Sean tells his mother Mikey was behaving normally before he died, but Lottie can’t help but feel that her son is keeping something from her.

As funeral mourners stand in silence at Ragmullin cemetery, a deafening cry cuts through the air. Lying crumpled at the bottom of an open grave is the bloodied body of a young woman, and Detective Lottie Parker is called in to investigate. Knowing the body can’t have been there long, Lottie wonders if it could be Elizabeth Bryne, a young woman who vanished without trace just days earlier. And with a new boss who seems to have it in for her, Lottie is under pressure to solve both cases quickly.

The young woman standing on Lottie's step was a stranger. She was clutching the hand of a young boy. "Help me," she said to Lottie. "Please help me." One Monday morning, the body of a young pregnant woman is found. The same day, a mother and her son visit the house of Detective Lottie Parker, begging for help to find a lost friend.

A victim? Or a killer? One icy cold morning, the remains of a woman are discovered. She has been abused, then butchered. DI Kelly Porter knows this is the work of a monster. One who has killed before - and will do so again. Kevin Flint is a young man with no friends and a reputation for being odd. He explores the hidden corners of the Lake District and likes to creep and watch. He witnesses depravity and it excites him. But will he cross the line from bystander to perpetrator?

DI Kelly Porter is about to discover just how dark things can get in the Lake District. When a young woman is found unclothed, unspeaking at an ancient stone circle it's not clear if any crime has been committed. DI Kelly Porter and her team start looking into the circumstances, but the mystery girl disappears. Soon after, a brutal murder is committed and sinister markings at the scene indicate that the killer had a message.

A brutal murder in the Lake District. A double assassination in a secret lab in London’s West End. Seemingly unconnected, unexpected links between the gruesome crimes emerge, and it’s up to DI Kelly Porter to follow the trail - all the way to the capital. Back among old colleagues and forced to work alongside her calculating ex, DCI Matt Carter, Kelly must untangle a web of deceit that stretches into the highest echelons of power - a place where secrets and lies are currency and no obstacle is insurmountable.

When a teenage girl flings herself off a cliff in pursuit of a gruesome death, DI Kelly Porter is left asking why. Ruled a suicide, there’s no official reason for Kelly to chase answers, but as several of her team’s cases converge on the girl’s school, a new, darker story emerges. One which will bring Kelly face-to-face with an old foe determined to take back what is rightfully his - no matter the cost.  

DI Kelly Porter is back. But will her latest case push her beyond her limits? On a peaceful summer morning in the Lake District, a dog walker discovers a woman’s body outside the local church. She has been brutally murdered, mutilated, and left with nothing but a roll of banknotes. Kelly takes charge of the investigation team, determined to catch the killer. But as the death toll rises, it becomes clear this could only be the work of a dangerous mastermind unlike anything she has encountered before.

When Ella Watson, a woman of wealth and status, is brutally stabbed to death in broad daylight, it sends a shockwave through the Lake District community. Later that day, Keira Bradley meets the same fate. But whereas Ella’s murder is a tragedy, Keira’s death on the notorious Beacon Estate is just another statistic in a dangerous place.

After a scandal forces DI Kelly Porter out of the Met, she returns home to the Lake District. Crimes in the Cumbrian constabulary tend to be minor, but Kelly begins work on a cold case that shocked the local community - the abduction and brutal murder of a 10-year-old girl. 

Megan has to climb round and step across the body to get a proper view. What's left is like a chalk white mask in the rough shape of a face. The innocence is still there, and a hint of the cheekiness. But perhaps she is imagining that. Detective Megan Thomas moved to Devon for a fresh start, after years spent undercover. She's staying with her sister and swimming in the sea daily, battling the tides and letting the waves wash her past away. But she can't outrun everything.

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.