Detective Madison Knight should have ignored her phone when it rang on Christmas Eve. Now she is spending the holiday dealing with her least favorite thing: a bloody murder scene. The victim, Claire Reeves, was a successful entrepreneur and had it all - sex appeal, intelligence, and money - but it seems that one of those things may have caught up with her.

FBI Special Agent Brandon Fisher and his team join forces with Miami PD Detective Kelly Marsh to find a missing woman Kelly believes was taken by a serial killer. From their first meeting, Brandon sees the detective as competition, and this isn’t helped by the personal history she shares with his boss. Brandon sees the similarities between Detective Marsh’s missing person case and the two cold cases: All three victims served time for vehicular homicide while driving under the influence and disappeared three days after being released from prison.

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.

It’s been five years since Detective Amanda Steele’s life was derailed by the tragic death of her young daughter. The small community of Dumfries, Virginia, may have moved on, but Amanda cannot. When the man who killed Lindsey is found murdered, she can’t keep away from the case. 

Homicide detective Taylor Jackson thinks she's seen it all in Nashville—from the Southern Strangler to the Snow White Killer. But she's never seen anything as perverse as The Conductor. Once his victim is captured, he contains her in a glass coffin, slowly starving her to death. Only then does he give in to his attraction.

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 body of a woman is found hanging from a tree in her front garden, rookie Detective Morgan Brookes is first on the scene. But Olivia Potter is past saving. And when her husband and daughters cannot be traced, Morgan knows there is more to this tragedy. And then she finds them. Lying huddled together in the dark basement, each of their faces covered with a small cotton cloth, their bodies cold to the touch. But as Morgan kneels beside the family, she realizes that one of the girls is still breathing.

Samantha Brinkman, an ambitious, hard-charging Los Angeles criminal defense attorney, is struggling to make a name for herself and to drag her fledgling practice into the big leagues. Sam lands a high-profile double-murder case in which one of the victims is a beloved TV star - and the defendant is a decorated veteran LAPD detective. It promises to be exactly the kind of media sensation that would establish her as a heavy hitter in the world of criminal law.

Women are rarely cold-blooded killers. But when famous philanthropist Hugo Fletcher is found dead, there is no doubt in anybody's mind that the killer is a woman. And it is clear from the precision of the planning that this was no crime of passion. It was an execution. The victim was revered the world over for his charitable work with trafficked Eastern European prostitutes, and as at least one of these girls is missing, Detective Chief Inspector Tom Douglas is certain that there has to be a connection.

FBI Agent Tara Mills is young, brilliant and new to the force. With a promising career in front of her, she faces the ultimate test when she is assigned the case. It soon proves to be more challenging than she ever could have imagined – an impossible riddle that leaves even her seasoned partner stumped. 

When a body is found stuffed into a barrel at a garbage dump, covered in long red lacerations, Detective Jenna Alton and her new deputy, David Kane, rush to the scene. Nothing ever happens in the small American town of Black Rock Falls, so Jenna believes the victim must be one of two recent missing persons, and she fears for the life of the other. Both were strangers to the town, but there's nothing else to link them. Jenna knows someone must have seen something, but no one's talking.

Just back from her second tour in Afghanistan, NYPD Detective Chiara Corelli goes undercover to expose a ring of dirty cops. But when she's ordered to kill to prove her loyalty, she aborts the operation without having identified the leaders. Now, Corelli is the one exposed. With her brothers and sisters in blue ostracizing her, can she trust Detective P. J. Parker to watch her back?

The LAPD finds a man dead at home. Nothing suggests foul play but elements of the victim’s house show that something is deeply wrong. Meanwhile, in Glasgow, DI Rachel Narey is searching for a missing young woman - and the man she suspects of killing her. When a feed broadcasting the slow and painful death of a final victim is discovered, these two cases become linked.

First a shooting, then a grisly discovery on the common.... Police partners, D.I. Calladine and D.S. Ruth Bayliss race against time to track down a killer before the whole area erupts in violence. Their boss thinks it's all down to drug lord Ray Fallon, but Calladine's instincts say something far nastier is happening on the Hobfield housing estate. Can this duo track down the murderer before anyone else dies and before the press publicise the gruesome crimes?

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.