Phobia is a series of five DS Jason Smith cases he worked on before we met him in the first book, Smith. We get insights into what molded him into the detective sergeant we first get a glimpse of in Smith. Smith quickly realizes that police work isn't always cut and dry. Justice is not always black and white; there are many shades of gray in between.

Detective Liam O'Reilly is bored. Life on the peaceful island of Guernsey is quiet, but it's too quiet for his liking. In the middle of an insurance fraud investigation, he confides in his daughter and tells her he'd give anything for a juicy murder case to sink his teeth into. "Be careful what you wish for, Dad." Her words are still fresh in his mind when O'Reilly stumbles upon two dead bodies while investigating a fire at a container depot. The bodies have been burned beyond recognition. Soon it becomes very clear that something sinister is happening on the sleepy island.

Detective Inspector Liam O'Reilly has recently transferred to the island of Guernsey from the Special Detective Unit in Dublin, and in this first installment, we see him hitting the ground running. He has barely set foot on the island when the body of a man is washed up on the shore. There is no indication of where the man came from - his hands and teeth have been removed, and he has a crude tattoo of a dragon on his back.

Was the biggest case of his career the worst mistake he ever made? Ten years ago, DCI Jack Logan stopped the serial child-killer dubbed "Mister Whisper", earning himself a commendation, a drinking problem, and a broken marriage in the process...When another child disappears a hundred miles north in the Highlands, Jack is sent to lead the investigation and bring the boy home. But as similarities between the two cases grow, could it be that Jack caught the wrong man all those years ago?

Detective Chief Inspector Harry Grimm is forced to take leave from Bristol’s Major Investigations Team when his boss, tired of Harry chasing the ghost of his murderous father, sends him north on secondment. Used to city life and high stress, Harry fears his life will now be spent handing out speeding tickets, finding lost sheep, and directing tourists. But when a local teenager runs away, Harry finds himself pulled into an investigation much worse than anyone could have ever expected.

A body is discovered deep in a cave beneath the Yorkshire Dales. Leading the investigation into the mysterious death are experienced DCI Jim Oldroyd and his partner DS Carter, a newcomer from London. The deceased is Dave Atkins, well known throughout the village but not well liked. While there is no shortage of suspects, the details of the crime leave Oldroyd and Carter stumped. 

A sinking boat is spotted off the South Coast. Waiting onboard is a grisly discovery. DCI Boyd, recently relocated from London to Hastings, is now with the East Sussex CID, and his first case is that of a local businessman and his new young wife, missing in the English Channel. All that remains of them is a grim scene aboard their half-submerged yacht and a digital trail of clues that could put Boyd and his daughter, Emma, in danger. 

Five years ago, DCI John Lomond led the search for notorious Glasgow child-killer ‘The Sandman', until personal tragedy forced him off the case. In Lomond's absence, the killer was never found. Now, with nothing but work left in his life, Lomond remains obsessed with the case–despite the nightmares it brings. When a child is abducted in similar Sandman fashion from an affluent Glasgow suburb, Lomond is brought in to find them before it's too late.

Starting a new life in Snowdonia was always DI Ruth Hunter's dream. Until a twisted killer turned it into her worst nightmare. Detective Inspector Ruth Hunter lives with the pain of her partner’s mysterious and unsolved disappearance. About to hit 50, the veteran police officer trades in the crime-ridden streets of London for a more peaceful life in rural North Wales. But Ruth has barely settled into her new position in North Wales Police, when the body of a brutally murdered woman is discovered...with strange symbols carved into her skin.

A girl’s body is found hidden in a remote spot of a Cornish farm - the same farm that a young girl ran toward to escape her pursuer many years before. Detective Harriet Taylor has to abandon her day off to investigate. As the forensics team get to work, they uncover another mystery hidden among the rocks. Who would kill a young backpacker? Is there a link between this and a mystery from many years ago? As Harriet and the team get to work, they find more questions than answers. What secrets is the sleepy Cornish village hiding?

Criminologist Martin Knight lives a gilded life and is a thorn in the side of the police. But then his wife, Liz, goes missing. There is no good explanation and no sign of Martin.... To make things worse, Liz is the ex-girlfriend of DCI Craig Gillard who is drawn into the investigation. Is it just a missing person or something worse? And what relevance do the events around the shocking Girl F case, so taken up by Knight, have to do with the present? The truth is darker than you could ever have imagined.

Ailsa Connolly was a brilliant psychologist and a respected criminologist. She was also a serial killer. Six years ago, DCI Sean Bracken caught her just before he was about to become her seventh victim. Every year on the anniversary of her incarceration, she taunts him with a phone call, giving him one message: "When I get out, I'll kill you." Now, Bracken has transferred back to Edinburgh and is thrown into the deep end on his first day back on duty. There's a killer who is emulating Ailsa, threatening to surpass her body count. 

Meet Simon Fenchurch, detective inspector working the Met’s East London beat. Honest and funny but damaged, he’s working a case that could give him answers to his deepest trauma....

When America's newest internet billionaire is shot on the shores of Loch Lomond, the team is brought in. Jade suspects a connection with the shooting of a local millionaire, an unsolved case which has been haunting her. But the team has its problems. Jade is only just back at work after a personal trauma, and can barely leave her own front drive. Petra is receiving anonymous phone calls and trying to establish a relationship with the latest in a string of girlfriends. And Mo is missing the city and his old boss DI Zoe Finch.

Someone is killing old spies. Retired and forgotten, these relics from the Cold War are being removed—quietly and brutally. And when “Section D” MI5 agent Tom Marlowe, on medical leave after a botched mission, learns his old mentor is one of the murdered ex-agents, he starts an investigation that threatens to cost him his career, his freedom…and even his life.