When notorious millionaire banker Lars Anderson hangs himself from the old oak tree in front of his Kent mansion his death attracts no sympathy. But the legacy of a lifetime of self-serving is widespread, the carnage most acute amongst those he ought to be protecting: his family. Meanwhile, in a wealthy suburb of Glasgow, a young woman is found savagely murdered in her home. The genteel community is stunned by what appears a vicious, random attack.

A Glasgow post office. Martin Pavel cowers on the floor, his eyes locked on those of a terrified child. Above them a masked gunman wields an AK-47 while the boy’s grandfather calmly volunteers to help gather the money. Then the old man stands passively, hands by his sides, while the gunman raises the barrel and shoots him to shreds. Recently returned to work after the birth of her twins, DS Alex Morrow is called in to head the investigation.

31st August 1997. Rose Wilson is 14, but looks 16. Pimped out by her ‘boyfriend’, she has seen more of the darkness in life than someone twice her age. On the night of Princess Diana's death, Rose snaps and commits two terrible crimes. But a defence lawyer takes pity and sets out to do what he can to save her. Present day. DI Alex Morrow is a witness in the case of Michael Brown – a vicious, nasty arms dealer.

Salt water lifts blood. Only salt water. Loch Lomond is a mile deep, but the woman's body surfaced anyway. Found bludgeoned and dumped in the water, she now haunts Iain Fraser, the man who put her there. She trusted him, and now that misplaced trust is gnawing through Iain's chest. He thinks it will kill him. Nearby Helensburgh is an idyllic Victorian town. One-time home to a quarter of all the millionaires in Britain, it is quaint, sleepy and chocolate-box pretty.

Paddy Meehan has just started work on the Scottish Daily News when a toddler is abducted. Two eleven-year-old boys are arrested for his murder and Paddy is shocked to discover that one of them is her fiance's cousin, Callum. When the boy's name is reported in the media, Paddy's family believe that she is to blame. Shunned by those closest to her, she finds herself dangerously alone.

It’s just a normal morning for Anna McDonald. Gym kits, packed lunches, getting everyone up and ready. Until she opens the front door to her best friend, Estelle. Anna turns to see her own husband at the top of the stairs, suitcase in hand. They’re leaving together and they’re taking Anna’s two daughters with them. Left alone in the big, dark house, Anna can’t think, she can’t take it in. With her safe, predictable world shattered, she distracts herself with a story: a true-crime podcast.

Leo Stone is a ruthless killer or the victim of a miscarriage of justice. A year ago, he was convicted of the murder of two women and sentenced to life in prison. But now he's free, and according to him, he's innocent. DS Maeve Kerrigan and DI Josh Derwent are determined to put Stone back behind bars where he belongs, but the more Maeve finds out, the less convinced she is of his guilt. Then another woman disappears in similar circumstances. Is there a copycat killer, or have they been wrong about Stone from the start?

Glasgow, 1990. Paddy Meehan's relaxed Saturday in front of the TV is shattered when the police knock on her door. Terry Patterson has been found naked in a ditch, executed with a shot through his temple. He was her first love and her hero - the sort of journalist she'd always aspired to be.

A murder without motive. A bombing. The sins of the past revisited.... DI Nathaniel Caslin is heading up a specialist unit, an opportunity to make a real difference. Little does he know, decisions taken decades previously are about to threaten all that he holds dear.... Gangland tensions are on the rise as an uneasy peace is fractured in spectacular fashion. Two warring factions are lining up to unseat the other. Old adversaries rekindle their passion to exact revenge whilst the next generation seek to make a name for themselves.

DI Nathaniel Caslin has earned the freedom to run his case load as he sees fit, bypassing the hierarchical constraints with his specialist unit. Little does he know a deadly adversary is walking the streets of York. One who will push the team to their psychological limits. Reluctantly agreeing to a joint investigation alongside a detective from the Drug Squad, Caslin is perplexed by the multiple homicides of a number of addicts. Poisoned by their own supply with no apparent motive, the killings appear gang related.

Maureen O'Donnell is a psychiatric patient, stuck in an affair with Douglas, a shady therapist. She’s about to end it with him when she wakes up one morning to find him in her living room with his throat slit. Viewed by the police as both a suspect and a witness, even Maureen’s family suspects her. Panic-stricken, she retraces Douglas' last days, finding a trail of rape and deception at a psychiatric hospital where she’d been an inmate. The patients won't talk and staff are afraid. Then a second brutalised corpse is discovered and Maureen realises that her life is in danger.

When Faye Baker discovers a fragile child’s skull behind the walls of her new home, Detective Lottie Parker is called to investigate. The house has been owned for years by the family of Faye’s boyfriend Jeff, so when Jeff starts acting suspiciously, Lottie wonders what he might be hiding....Lottie doesn’t have long to dig deeper before a child’s bones are found by 11-year-old Gavin on nearby railway tracks. The bones don’t match the small skull behind the walls, but Lottie can’t ignore the coincidence. 

The last time that Maureen O'Donnell saw Ann Harris she was nursing a couple of broken ribs and reeking of alcohol at the women's shelter. Now Ann has turned up dead hundreds of miles away, in London. Eager to escape some family difficulties of her own, Maureen travels to London to determine the circumstances of Ann's brutal death. In the seedy underworld of criminal exiles and dangerous drug lords, Maureen tries to piece together the horror of Ann's last days - and to save herself from a similarly ugly fate.

A businessman found hanged. A tortured and mutilated loaner. High finance has never been so deadly.... DI Nathaniel Caslin is spiralling toward a professional crisis. His biggest case in years has collapsed amid accusations of police intimidation. A rebuilt reputation is now facing ruin.... As the extremes of nationalist hate descend upon York, a refugee is tortured to death while a straightforward case of a bankrupt’s suicide proves to be anything but simple. How does an enigmatic campaigner with a secret to keep link these two disparate worlds?

DCI Whitney Walker’s in trouble. She’s threatened with demotion if she screws up another case. So, when a killer starts murdering female students, it’s a chance to redeem herself. Forensic psychologist, Dr. Georgina Cavendish, has spent her life inside the university walls, but when one of her students is murdered, she steps out from behind the text books and puts her skills to the test.