Meet DI Hillary Greene, a police woman fighting to save her career. Not only has she lost her husband, but his actions have put her under investigation for corruption. Then a bashed and broken body is found floating in the Oxford Canal. It looks like the victim fell off a boat, but Hillary is not so sure. Her investigation exposes a dark background to the death. Can Hillary clear her name and get to the bottom of a fiendish conspiracy on the water?

Oxford, 1960. There's a murderer on the loose, and two unlikely heroes are poised to solve the case. Meet Trudy Loveday - smart, enthusiastic and always underestimated. In the hope of getting her out of the way, Trudy is assigned to help coroner Clement Ryder as he reopens the case of a young woman's death. She can't believe her luck - she is actually going to be working on a real murder case. Meanwhile, the rest of the police force are busy investigating a series of threats and murders in the local community, and Clement can't help but feel it's all linked.

Meet Jenny Starling: travelling cook and reluctant amateur detective. Jenny Starling is catering the 21st birthday party of upper-class twins Alicia and Justin. She arrives at their parents' country house and is immediately met by the police. A young man has drowned in the pond. Was it an accident or murder? But the birthday party goes ahead. Then, just after midnight, everyone gathers for a champagne toast...and one of the guests falls down dead. The police are baffled, and there is a whole party full of suspects. 

In the glorious sunshine of Oxford, on a day when everyone should be celebrating, tragedy strikes when a university student is found floating in the river, dead. Probationary WPC Trudy Loveday finds herself paired with coroner Clement Ryder to investigate and it soon becomes clear that this case is not going to be easy. The witnesses all refuse to give a straight answer, each new lead sends them in a new direction and tales of other missing youngsters add further mystery to the investigation.

A family day out at Briar’s Hall ends in tragedy when a young boy goes missing - and his body is found at the bottom of a disused well in the orchard. It looks like a simple case of an 11-year-old exploring where he shouldn’t: a tragic accident. But Coroner Clement Ryder and Probationary WPC Trudy Loveday aren’t convinced. If Eddie had been climbing and fallen, why were there no cuts or dirt on his hands? Why would a boy terrified of heights be around a well at all? 

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. 

Detective Chief Inspector Ryan retreats to Holy Island seeking sanctuary when he is forced to take sabbatical leave from his duties as a homicide detective. A few days before Christmas, his peace is shattered, and he is thrust back into the murky world of murder when a young woman is found dead amongst the ancient ruins of the nearby priory. When former local girl Dr. Anna Taylor arrives back on the island as a police consultant, old memories swim to the surface, making her confront her difficult past.

DI Nikki Galena: A police detective with nothing left to lose, she's seen a girl die in her arms, and her daughter will never leave the hospital again. She's gotten tough on the criminals she believes did this to her. Too tough. And now she's been given one final warning: make it work with her new sergeant, DS Joseph Easter, or she's out.

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. 

When Matt Ballard was starting out his career, three boys were murdered in the same area, the remote and bleak Gibbet Fen. When the main suspect was killed in a hit-and-run, the killings stopped. But Matt was not satisfied that the real murderer had been caught. Over 25 years later, Matt gets a photo in an unmarked envelope. It's of the Gibbet Fen crime scene. And the picture was taken before the murder took place. More photos arrive, relating to the historic murders, as well as intimate pictures of Matt's very secret private life.