A truck driver loses control in central Edinburgh, ploughing into a crowded bus stop and spilling his vehicle's toxic load. The consequences are devastating. DI Tony McLean witnesses the carnage. Taking control of the investigation, he soon realises there is much that is deeply amiss - and everyone involved seems to have something to hide. But as McLean struggles to uncover who caused the tragedy, a greater crisis develops - the new DCI's son is missing - last seen in the area of the crash....

Her lifeless body is hidden in the dark corner of a basement room, a room which seems to have been left untouched for decades. A room which feels as cold as the grave. As a rowdy demonstration makes its slow and vocal way along Edinburgh's Royal Mile, Detective Chief Inspector Tony McLean's team are on stand-by for any trouble. The newly promoted McLean is distracted, inexplicably drawn to a dead-end mews street...and a door, slightly ajar, which leads to this poor girl's final resting place. But how long has she been there, in her sleep of death? 

Suspended from duty after her last case ended in the high-profile arrest of one of Britain's wealthiest men, DC Constance Fairchild is trying to stay away from the limelight. Fate has other ideas. Coming home to her London flat, Constance stumbles across a young man, bloodied, mutilated and barely alive. She calls it in and is quickly thrown into the middle of a nationwide investigation. It seems that the victim is just the latest in a string of similar ritualistic attacks. 

Detective Joseph Easter's daughter discovers a cottage hidden in some trees on a large fenland farm. Someone has been living there. The farm owner's wife has been receiving sinister pagan artifacts, including a witch's knife. Are they some sort of warning or message? Joseph and his daughter search the cottage and find an old satchel. Inside are photos of a beautiful girl, Jennifer Cowley. She went missing 15 years ago. She'd been stalked by a young man, who was convicted of her murder, even though her body was never found.

Grace Repton, a beautiful older woman, walks into the police station to tell Detective Matt Ballard she has information that could stop a murder. Her fiance, the infamous serial killer Jeremy Reader, has told her that he has a disciple who is going to kill using Reader's horrific methods. Reader murdered five women and was finally brought to justice by Detective Ballard. Reader is safely imprisoned in a high security prison, and claiming to be a reformed man who wants to help the police.   

In Eastvale, a young Middle Eastern boy is found dead, his body stuffed in a wheelbarrow on the East Side Estate. Detective Superintendent Banks and his team know they must tread carefully to solve this sensitive case. But tensions rise when they learn that the victim was stabbed somewhere else and dumped. Who is the boy, and where did he come from? Then, in a decayed area of Eastvale scheduled for redevelopment, a heroin addict is found dead. Was this just another tragic overdose or something darker?

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. 

A dark night in the isolated Scottish countryside. Nicholas Wilson, a prominent professor known for his divisive social media rants, leaves the house with his dog, as he does every night. But this time he doesn’t come back... The last thing Inspector Logan McRae wants is to take on such a high-profile case. But when a second man vanishes in similar circumstances, the media turns its merciless gaze on him and he has no choice. Then body parts start arriving in the post. Someone out there is trying to make a point and they’re making it in blood.  

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.

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....

In the middle of the night, in a house on a quiet street in suburban Minneapolis, intruders silently murder Luke Ellis' parents and load him into a black SUV. The operation takes less than two minutes. Luke will wake up at The Institute, in a room that looks just like his own, except there's no window. And outside his door are other doors, behind which are other kids with special talents - telekinesis and telepathy - who got to this place the same way Luke did: Kalisha, Nick, George, Iris, and 10-year-old Avery Dixon.

When teenager Sadie Winter jumps from the roof of her school, her death is ruled as suicide - a final devastating act from a troubled girl. But then the broken body of a young boy is discovered at the same school and it’s clear to Detective Kim Stone that these deaths are not tragic accidents. As Kim and her team begin to unravel a dark web of secrets, one of the teachers could hold the key to the truth. Yet just as she is about to break her silence, she is found dead.

Detective Inspector Munro is a burly Scottish policeman who doesn’t suffer fools gladly. Detective Sergeant West is an intelligent young woman, new to the force, with a lot to prove. When a missing person case lands on their desks, Munro is skeptical there is much to it. But their investigation soon comes to some strange findings, and before long a body is found. With a serial killer on their hands, they must act fast to trace a woman placed at the scene of the crime. Yet discovering her true identity, let alone finding her, proves difficult. And as the plot thickens they realise the crime is far graver than either of them could have imagined.

On the fourth floor of Chaucer House, two teenagers are found chained to a radiator. The boy is dead but the girl is alive. For Detective Kim Stone every detail of the scene mirrors her own terrifying experience with her brother Mikey, when they lived in the same tower block 30 years ago. When the bodies of a middle-aged couple are discovered in a burnt-out car, Kim can’t ignore the chilling similarity to the deaths of Erica and Keith - the only loving parents Kim had ever known. 

When the body of a doctor is discovered brutally murdered in local woodland, Detective Kim Stone is shocked to discover the victim is Gordon Cordell - a man linked to a previous case she worked on involving the death of a young schoolgirl. Gordon has a chequered past, but who would want him dead? As the investigation gets underway, Gordon’s son is involved in a horrific car crash which leaves him fighting for his life. Kim's sure this was no accident.