When a 10-year-old girl turns up on DCI Ryan’s doorstep to tell him she’s witnessed a murder, he has no idea he’s about to step into his most spellbinding case yet. The circus has rolled into Newcastle upon Tyne, bringing with it a troupe of daring acrobats, magicians and jugglers - and one of them is a killer. Ryan and his team must break through their closed ranks to uncover a secret which has lain buried for eight years, before the killer strikes again - this time, to silence the only living witness.... 

After uncovering a fresh wave of corruption within the ranks of Northumbria CID, Detective Chief Inspector Ryan was looking forward to an uneventful summer. But, when a young woman is shot dead on the remote army ranges of the Northumberland National Park, Ryan is called in to investigate. Meanwhile, violent crimes are being committed across sites of historic importance in the North East, the perpetrator leaving only a graffitied symbol as their calling card. As the body count rises, Ryan and his team must unravel the mystery behind its meaning - before it's too late....

After a busy year fighting crime, DCI Ryan and his team of murder detectives are enjoying a festive season of goodwill, mulled wine and, in the case of DS Phillips, a stottie cake or two - that is, until a freak snowstorm forces their car off the main road and into the remote heart of Northumberland. Their Christmas spirit is soon tested when they’re forced to find shelter inside England’s most haunted castle, where they’re the uninvited guests at a ‘Candlelit Ghost Hunt’. It’s all fun and games - until one of the guests is murdered. 

There's a serial killer targeting the streets of Newcastle, seemingly picking his victims at random but subjecting them all to the same torturous end. When the chief inspector on the case goes missing, it falls on DCI Ryan to track down the man who is brutally murdering women and goading the police to 'catch me if you can'. As everyone becomes a suspect, Ryan and his team get drawn further and further into the case, but for Ryan the nightmare gets closer to home than he could ever have imagined.

After an elite criminal profiling unit is shut down amid a storm of scandal and mismanagement, only one person emerges unscathed. Forensic psychiatrist Doctor Alexander Gregory has a reputation for being able to step inside the darkest minds to uncover whatever secrets lie hidden there, and soon enough he finds himself drawn into the murky world of murder investigation. In the beautiful hills of County Mayo, Ireland, a killer is on the loose. Panic has a stranglehold on its rural community, and the Garda are running out of time. 

Recently returned from his last case in Ireland, elite forensic psychologist and criminal profiler Dr Alexander Gregory receives a call from the French police that he can’t ignore. It’s Paris fashion week, and some of the world’s most beautiful women are turning up dead, their faces slashed in a series of frenzied attacks while the world’s press looks on. Amidst the carnage, one victim has survived, but she’s too traumatised to talk. Without her help, the police are powerless to stop the killer before he strikes again.

Between the devil and the deep blue sea... Viking treasure is discovered beneath the icy waters of the North Sea, and local historian Dr Anna Taylor is called in to help catalogue the most exciting hoard in living memory. But when a shipwreck diver washes up dead, she’s soon out of her depth. Luckily, she knows just the person to call.... When DCI Ryan arrives at the picturesque fishing town of Seahouses, he's faced with an impenetrable wall of secrets and lies.

When an old man is found dead inside the ancient hermitage at Warkworth Castle, Northumbria CID are called in to investigate. With no apparent motive, it’s their job to unravel why he was murdered - and this time they’re forced to do it without their star detective.... DCI Ryan is thousands of miles away. He’s tracked a killer across Europe and has sworn not to return until he has his man in custody. Nathan Armstrong is a dangerous psychopath, but there’s just one problem - he’s also an international celebrity: a world-famous thriller writer with money and connections.

Beware what lies beneath.... One fateful, starry night, three friends embark on a secret camping trip, but only two return home. Thirty years later, the body of a teenage boy rises from the depths of England's biggest reservoir and threatens to expose a killer who has lain dormant...until now. Detective Chief Inspector Ryan returns from honeymoon to face danger from all sides. In the depths of Kielder Forest, a murderer has escaped justice before and will do anything to protect the secrets of the past.

It's been five months since a killer walked free, and DCI Ryan is preparing to leave Newcastle to hunt him down - this time for good. But Ryan's plans are scuppered when events take a dramatic turn and he is forced to stay and face his past one last time or watch a friend suffer the consequences. Amid the chaos, another killer is preparing to strike. When the Tyne Bridge explodes, Ryan's team are faced with a frantic race to uncover a deadly foe who won't stop until every bridge is burned, along with everybody on it....

Hell has unleashed a demon - and he's coming for you.... Detective Chief Inspector Ryan's worst nightmare has just become a reality. Notorious serial killer The Hacker has escaped prison and kidnapped one of his best detectives from her own home. His brutality is the stuff of legend - Ryan lost his sister and nearly his own life bringing the man to justice first time around. Can Ryan do it again to save his friend? There's a nationwide manhunt underway but the trail has gone cold and fear spreads like a virus.

After a turbulent time, DCI Ryan's life is finally beginning to return to normal, and he's looking forward to spending an uneventful Easter bank holiday weekend with his fiancée. Then, on Good Friday morning, he is called out to a crime scene at one of the largest cemeteries in Newcastle. The body of a redheaded woman has been found buried in a shallow grave, and the killer has given her wings, like an angel. Soon another woman is found at a different cemetery, followed quickly by another.

The hunter becomes the hunted.... When a man is found dead at the remote church of Heavenfield, DCI Ryan is the only other person for miles around. The police have no weapon, no motive and no other suspects. Already suspended from Northumbria CID, Ryan must fight to clear his name. But soon more than his career is at stake when prominent members of the mysterious Circle begin to die.

When Harry Falcon, a wealthy boatyard owner and decorated World War Two veteran, is found drowned in his bath, DI John Tanner and DC Jenny Evans start by questioning his two sons, each with a motive for wanting him dead. But when the elder son is found with his head smashed in under a toppled yacht, and the younger son has been talking to a local property developer, one who’d spent months trying to buy the yard from his father, the investigation soon leads them towards a dark and dangerous secret, one which nobody can quite believe.

When a girl’s body is found strangled, raped, and horrifically mutilated by a boat’s propeller, deep in the heart of the Norfolk Broads, newly arrived Detective Inspector John Tanner is asked to assist with the investigation. At first, all the evidence points to a man who had a multi-million-pound reason to kill her. But when an alibi is produced from an unexpected source, and another body appears at the base of a slipway, Tanner finds himself turning to local girl Detective Constable Jenny Evans for help.