Something dark is lurking in the Louisiana bayou: a methodical killer with a penchant for medical experimentation is hard at work completing his most harrowing crime yet, taunting the authorities who desperately try to catch up. But forensic pathologist Dr. Wren Muller is the best there is. Armed with an encyclopedic knowledge of historical crimes, and years of experience working in the Medical Examiner's office, she's never encountered a case she couldn't solve. Until now.

When a young boy discovers the body of a woman beneath a thick sheet of ice in a South London park, Detective Erika Foster is called in to lead the murder investigation. The victim, a beautiful young socialite, appeared to have the perfect life. Yet when Erika begins to dig deeper, she starts to connect the dots between the murder and the killings of three prostitutes, all found strangled, hands bound, and dumped in water around London.

When a woman's body is discovered in a cathedral and hours later a young man is found hanging from a tree outside his home, Detective Lottie Parker is called in to lead the investigation. Both bodies have the same distinctive tattoo clumsily inscribed on their legs. It's clear the pair are connected, but how? The trail leads Lottie to St Angela's, a former children's home, with a dark connection to her own family history. Suddenly the case just got personal.

Thomas Usher has a terrible gift. Following a car crash in which his wife and daughter are killed, he can see the recently departed, and it's not usually a pretty sight. When he is called to investigate the violent death of the daughter of a prominent local gangster, Usher's world is torn apart once more. For the barriers between this world and the next are not as immutable as once he believed.

He slips into their homes at night and walks silently into bedrooms where women lie sleeping, unaware of the horrors they soon will endure. The precision of the killer's methods suggests he is a deranged man of medicine, propelling the Boston newspapers and the frightened public to name him "The Surgeon". The cops' only clue rests with another surgeon, the victim of a nearly identical crime. Two years ago, Dr. Catherine Cordell fought back and killed her attacker before he could complete his assault.

Someone is out to murder Detective Constable Bailey Morgan before she can testify in an upcoming trial. Using her undercover skills, Bailey embarks on a dangerous mission to help the police catch this elusive killer before it’s too late. But it won’t be easy, for she’s up against a cunning and ruthless adversary who will stop at nothing to eliminate her. A tense game of cat and mouse ensues, leading to a shocking revelation at the heart of which lies the key to Bailey’s survival.

In 1922 a farmer in Adamant, Arkansas, awakes to a noise on his roof and finds his snow-blanketed yard marked with thousands of cloven footprints. The prints vanish with the melting snow...only to reappear 70 years later near the gruesome killing of Rachel DeLaune. Years after her sister’s unsolved murder, New Orleans tattoo artist Sarah DeLaune is haunted by the mysteries of her past. Sarah has always believed that her sister was killed by a man named Ashe Cain. But no one else had ever seen Ashe. He had "appeared" to Sarah when she needed a friend the most, only to vanish on the night of her sister’s murder.

The police are desperate for information on the triple homicide. Detective Joona Linna enlists the help of hypnotist Erik Maria Bark. But when Bark unlocks the secrets in the boy’s memory, he triggers a terrifying chain of events that will put all their lives in jeopardy.

Peter Stevenson reluctantly returns to his home-town for the first time in 20 years to attend the funeral of a friend who seemingly committed suicide. The somber occasion reunites him with the surviving members of his gang of childhood friends, and they spend the evening reminiscing their teenage days. Peter wakes up the next day stranded in a cabin in the woods feeling like he was drugged and with no recollection of the night before.

In a town full of liars, who can you trust? When Detective Finnegan Beck is demoted from his high-powered job in Dublin and relocated in disgrace to the small Irish town of Cross Beg, he predicts boredom will be his biggest threat. But then a beautiful local teenage girl is found strangled in the cold, dark woods a mile from town. The prime suspect is the seemingly gentle drifter who found Tanya’s body. Beck seems to be the only person who can’t escape the feeling that Tanya wasn’t killed at random.

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.

In this brilliant debut, a psychologist finds herself drawn into the dark world of a serial killer - who may be closer than she thinks.... Ray and Marie Benson killed 13 women before they were caught, tried and imprisoned. Five of their victims were never found. Six years later psychologist Alice Quentin discovers a woman's body on the waste ground at Crossbones Yard. The wounds are horrifyingly similar to the Bensons' signature style.

Pools of blood, scenes of carnage, signs of agonising death - who deals with the aftermath of violence once the bodies have been taken away? Judith Kepler has seen it all. She is a crime-scene specialist. She turns crime scenes back into habitable spaces. She is a cleaner. It is at the home of a woman who has been brutally murdered that she is suddenly confronted with her own past. The murder victim knew Judith's secret: as a child Judith was sent to an orphanage under mysterious circumstances - parentage unknown.

William Fawkes, a controversial detective known as The Wolf, has just been reinstated to his post after he was suspended for assaulting a vindicated suspect. Still under psychological evaluation, Fawkes returns to the force eager for a big case. When his former partner and friend, detective Emily Baxter, calls him to a crime scene, he's sure this is it: the body is made of the dismembered parts of six victims, sewn together like a puppet - a corpse that becomes known as "The Ragdoll".

Darkness lives within.... Cash strapped, working for agencies and living in shared accommodation, Stephanie Booth feels she can fall no further. So when she takes a new room at the right price, she believes her luck has finally turned. But 82 Edgware Road is not what it appears to be.