Starling House is home to some of the nation’s deadliest teenagers, still too young for prison. When the latest arrival is found brutally murdered, DCI Matilda Darke and her team investigate, and discover a prison manager falling apart and a sabotaged security system. Neither the staff nor the inmates can be trusted. The only person Matilda believes is innocent is facing prison for the rest of his life. With time running out, she must solve the unsolvable to save a young man from his fate, and find a murderer in a house full of killers....

When DCI Matilda Darke receives a mysterious telephone call, she immediately dismisses the threat. After all, the Homicide and Major Enquiries team are a regular target for prank calls. But ignoring this warning might soon be the biggest regret of Matilda Darke’s life. A lone gunman is on a deadly rampage around Sheffield, leaving a bloody trail in his wake. Taking his shots with a sickening precision, he’s about to leave his mark on the world and change Matilda and her team’s lives forever.

There’s a killer in your house. The Hangman waits in the darkness. He knows your darkest secrets. He’ll make you pay for all the crimes you have tried desperately to forget. And he is closer than you think. DCI Matilda Darke is running out of time. Fear is spreading throughout the city. As the body count rises, Matilda is targeted and her most trusted colleagues fall under suspicion. But can she keep those closest to her from harm? Or is it already too late? 

When elderly George Rainsford goes to investigate a suspicious noise one night, the last thing he expects to find is a bloodbath. A man has been killed and a woman brutally beaten, left for dead. The victims are Lois Craven and Kevin Hardaker - both married, but not to each other. Their spouses swear they knew nothing of the affair, and, besides, they both have alibis for the attack. With nothing else to link the victims, the investigation hits a dead end. 

A young boy walks into a police station in France. He claims to be Carl Meagan - a missing child from Sheffield whose name is still whispered as a warning to kids who stay out after dark. On her way home from the supermarket, nine-year-old Keeley Armitage vanishes without trace. Her family is overcome with shock and DCI Matilda Darke can’t help but focus on memories of the Carl Meagan case that almost ruined her career.

DCI Matilda Darke has returned to work after a nine-month absence. A shadow of her former self, she is tasked with reopening a cold case: the terrifyingly brutal murders of Miranda and Stefan Harkness. The only witness was their 11-year-old son, Jonathan, who was too deeply traumatised to speak a word. Then a dead body is discovered, and the investigation leads back to Matilda's case. Suddenly the past and present converge, and it seems a killer may have come back for more.... 

On Sunday, February 3rd 1990, seven-year-old Danny Redpath disappeared from his home. Four months later, his body was found in the nearby forest, washed clean of all evidence. Over time, more bodies were discovered; more families devastated forever. Apprehended while attempting to abduct another child, Jonathan Egan-Walsh was charged with the murders of thirteen boys. Convicted on all counts, he received life in prison and went unrepentant, still refusing to reveal the whereabouts of one of his victims, Zachery Marshall.

When nine-year-old Charlotte Standish goes missing from her street in the small town of Rydale Falls, it sparks a media frenzy. Detective Morgan Brookes leads a frantic hunt for the girl, but little Charlie seems to have vanished into thin air. Chasing up a lead at Charlie’s school, Morgan is chilled to learn that this isn’t the first time a child has gone missing on this street. Another girl disappeared 15 years ago, and Morgan is the only one who thinks the cases could be related. But in the moment that she takes her eye off Charlie’s case, another child goes missing. 

Detectives Calladine and Bayliss face a vicious serial killer in a mystery with a shocking ending. A woman’s body is found in a disused church, a homemade stuffed toy by her side. The victim had been dumped there months ago. The crime has the hallmarks of 20-year-old case whose alleged perpetrator is in prison. Detective Ruth Bayliss must work out whether a serial killer has returned, or if a new killer is just taunting the police. Her partner DI Tom Calladine faces the fight of his life to clear his name of corruption accusations. And then things go from bad to worse for Calladine.

When a fishing boat is wrecked off the treacherous North Sea coast and the body of a young woman washes up on the beach beside the iconic ‘Marsden Rock’, DCI Ryan cannot ignore the call to duty. With one already dead and more human cargo missing from the wreckage, Ryan and his team race to find the remaining souls - before it’s too late and their investigation turns to murder. As they uncover the seedy underbelly of Tyneside, cold and calculated opportunism clashes with the rock-hard arm of the Law, but there’s one thing that proves stronger than stone.

Detectives Calladine and Bayliss hunt for a vicious killer. The first victim is found on waste ground. His tongue has been cut out and stuffed down his throat. Then another body is found dumped in a lake up in the hills. The same gruesome murder method is used. And guess who the detectives’ new boss is? The incredibly difficult Stephen Greco. A twisted killer...and a wicked twist.

After a violent home invasion in the remote wilds of Glen Coe leaves a family of four dead, DCI Jack Logan and his team are brought in to lead the manhunt. But, when one of the victims is revealed to be one half of legendary 1980s Glasgow-based comedy double act, Neeps & Tatties, Logan is forced to leave the Highlands and head back to his old stomping ground.

Returning to the Broads after nearly two years at sea, John Tanner moors up next to a boat to find the body of a man whose five-year-old daughter is nowhere to be seen. As a torrent of unwanted memories begins flooding through his mind, an attractive Broads Ranger arrives at the scene with a disturbing tale; one of children being taken by a ghostly figure, standing at the helm of an old wooden boat.

When Detective Kim Stone is called to a local business, what she sees leaves her speechless. The photo on the driving license bears little resemblance to the man laid out before her, and she knows she’s up against the most twisted killer she has ever encountered. But as she breaks the devastating news to the victim’s wife, Diane Phipps, Kim can’t help feeling that something isn’t quite right about the woman’s reaction. 

The body of an elderly woman has been found in the bowels of a derelict asylum on the banks of the Thames. As Detective Lew Kirby and his partner begin their investigation, another body is discovered in the river nearby. How are the two murders connected? Before long, the secrets of Blackwater Asylum begin to reveal themselves. There are rumours about underground bunkers and secret rooms, unspeakable psychological experimentation, and a dark force that haunts the ruins, trying to pull back in all those who attempt to escape.