Following a grisly discovery made on Scotland’s Isle of Skye, forensic scientist Rhona MacLeod is sent over to investigate. It’s there she finds a decomposing foot, caught in a net by a local fisherman, and there are key questions which remain unanswered: where is the rest of the body? Who was the dead man? And why does the Ministry of Defence want the discovery to be kept out of the media?

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?

When the chief suspect in the notorious "peekaboo cop killer" case blew himself up, almost taking lead investigator DCI  Duncan Bone with him, the psychologically damaged detective thought his days on the force were over. But, when another PC is abducted and murdered in the same deranged peekaboo fashion, Bone is persuaded to return to lead the new investigation.

In the present, an old fisherman is found dead by the shoreline and a stranger with a mission moves into a shabby Kinloch flat/ Meanwhile, D.C.I. Jim Daley is trying to help Brian Scott stay sober, and the good people of Kinloch are still mourning the death of one of their own. As past and present collide, Daley finds himself face to face with old friends and foes. Memories can only last as long as those who keep them, and ghosts will not be silenced.

With a glittering career, spanning several decades representing the privileged and the wealthy, behind him the focus of the investigation inevitably turns toward cases and clients past and present, but was his death linked to his work or is there another, darker and far more sinister motive at play? No matter how successful, privileged or elevated in society one person can be, one universal rule applies; we all bleed the same.

An archaeological dig at the old South Leith parish kirkyard has turned up a mysterious body dating from around 700 years ago. The experts wonder if she wasn't murdered and dumped, but some suspect that this gruesome discovery is a sacrifice, placed there for a specific purpose. Then a second body is unearthed. This victim went missing only 30 years ago - but the similarities between her death and the ancient body's suggest something even more disturbing.

Ex-priest DI Frank Farrell has returned to his roots in Dumfries, only to be landed with a disturbing murder case. Even worse, Farrell knows the victim: Father Boyd, the man who forced him out of the priesthood 18 years earlier. With no leads, Farrell must delve into the old priest’s past, one that is inexorably linked with his own. But his attention is diverted when a pair of twin boys go missing. The Dumfries police force recover one in an abandoned church, unharmed. But where is his brother?

When three young women are discovered strangled and mutilated in a Glasgow park, it is up to DCI Lorimer to find their killer. Frustrated by a lack of progress in the investigation, Lorimer is forced to enlist the services of Dr Solomon Brightman, psychologist and criminal profiler. Together they form an uneasy alliance. But when a homeless man is brought in for questioning, the investigation takes a bizarre turn.

Former soldier. Ex-copper. Current man on the edge. Shunned by his old colleagues, and dividing his time between a dead-end job and the bottom of a whisky bottle, former Police Scotland detective superintendent Bob Hoon’s life is a mess. Then an old face from Hoon’s Special Forces days turns up asking for help: His teenage daughter has been missing for months, the police have drawn a blank, and he needs the kind of help that only Hoon can provide. And besides, Hoon owes him one.

The brutal murder of 10-year-old Callum Bradley sent shockwaves across Scotland, but as the weeks have stretched on with no solid leads, the investigation has been scaled back. Sergeant Don Colyear, community police officer, is tasked with tying up a loose end: a 999 call which may have hinted at the boy's murder. However, the call was made three weeks before the crime took place. The caller turns out to be a resident at an Edinburgh care home, drifting in and out of lucidity due to dementia - enough to write off the potential lead as a dead end. 

Undercover ops are always dangerous, but DC Constance Fairchild never expected things to go this wrong. Returning to their base of operations, an anonymous office in a shabby neighbourhood, she finds the bloodied body of her boss and friend, DI Pete Copperthwaite. He's been executed - a single shot to the head. In the aftermath, it seems someone in the Met is determined to make sure that blame for the wrecked operation falls squarely on Con's shoulders. She is cut loose and cast out, angry and alone with her grief....

DI Liam McLusky, freshly transferred from Southampton and just recovered from having been injured in the line of duty, has no time to settle in before he is pushed in at the deep end in a new and unfamiliar city. Everyday objects, transformed into explosive devises by a man trying to revenge himself on the world for reasons unknown, are being left across Bristol, maiming or killing those who pick them up.

Five figures gather 'round a shallow grave. They had all taken turns to dig. An adult-sized hole would have taken longer. An innocent life had been taken, but the pact had been made. Their secrets would be buried, bound in blood. Years later a headmistress is found brutally strangled, the first in a spate of gruesome murders that shock the Black Country.

A city torn apart.It is 1969 and Glasgow has been brought to its knees by a serial killer spreading fear throughout the city. The Quaker has taken three women from the same nightclub and brutally murdered them in the backstreets. A detective with everything to prove.Now, six months later, the police are left chasing a ghost, with no new leads and no hope of catching their prey. 

It’s been five years since Mackenzie Darroch was held captive in a derelict house. She thought she'd found her way out of the darkness. She was wrong. When she witnesses a car crash and saves the driver’s life, it sets a chain of events that will alter their futures. Gina Calvi is convinced Mackenzie is not what she appears and is prepared to do anything to prove it. Meanwhile, across the city, Kirsty McBride, a young single mother, is persuaded to leave a violent relationship.