A missing girl. A case that's personal. A contract killer on Irish soil. Cat Connolly is back at work. Struggling to adjust to physical and mental scars, her workload once again becomes personal when her best friend, Sarah Jane, goes missing. Sarah Jane's a journalism student, the daughter of a decorated war correspondent, but what could she be working on that could lead to her disappearance? And how deadly will it get?

On Doogort East Bog, Achill Island, a body is found. The close community is stunned to learn that it's Lisa Moran, a popular teacher who disappeared two days earlier. DS Lucy Golden is assigned to the case. For her, it's personal. As an Achill native, she knows that sometimes great evil can lurk in plain sight. Having moved back from Dublin, she has spent the last 10 years trying to prove herself to her colleagues after her husband was jailed for fraud. This is her chance to put the past behind her.

As temperatures soar across Europe during the hottest summer for 40 years, a series of hoax terrorist attacks is generating panic in London. Then a bus blows up on Oxford Street, and the hoaxes have suddenly become real. Student Brioni O’Brien has been desperately trying to contact her older sister since she unexpectedly returned early from travelling, so when Marissa’s bag is found near the site of the explosion, she fears the worst.

Life is good for university friends Sarah, Ruth, Charlotte and Kathy - it's summer, exams are over and they're escaping to a cabin by the Blue Pool. But then Sarah disappears without a trace. Twenty-five years later, a man walks into a police station claiming to know something about the missing girl. Suddenly the three women - now estranged - all become suspects. For not everything was as it seemed, and the greater the secret, the deeper it lies....

Some lines should never be crossed. Police corruption, an investigation that ends in tragedy and the mystery of a little girl’s silence – three unconnected events that will prove to be linked by one small town. While detective Cormac Reilly faces enemies at work and trouble in his personal life, garda Peter Fisher is relocated out of Galway with the threat of prosecution hanging over his head. But even that is not as terrible as having to work for his overbearing father, the local copper for the pretty seaside town of Roundstone. 

On a leafy suburban street in Dublin, beautiful, poised Stella Greene lives with her successful husband, Matt. They're the perfect couple in every way, and Stella appears to have it all. Next door, at number 72, however, lives Rea Brady. Gruff, bad tempered and rarely seen besides the twitching of her net curtains, rumour has it she's lost it all...including her marbles, if you believe the neighbourhood gossip. But appearances can be deceiving, and when Stella and Rea's worlds collide they realise they have much in common.

A young girl has been found in a deserted cemetery. She speaks a foreign language, and she cries for her mother. But nobody claims her. Nobody knows who she is. On the streets of Cork, beggars are being horrifically murdered. But why would anyone want to kill the city's homeless? It's up to DS Katie Maguire to find out. Katie's fiancé is fighting his own battle: against illegal puppy farming, a lucrative black market run by Ireland's most fearsome gangs. When the investigations collide, who will Katie save first? 

Five years ago, Erin Kennedy moved to New York following a family tragedy. She now lives happily with her detective husband in the scenic seaside town of Newport, Long Island. When Erin answers the door to Danny's police colleagues one morning, it's the start of an ordinary day. But behind her, Danny walks to the window of their 4th-floor apartment and jumps to his death.

Finn Fitzpatrick barely knows Mandy Breslin from the law firm where they both work. Mandy moves in the privileged world of the senior partners. Finn keeps to herself. But Mandy has secrets, and as Finn gets drawn deeper and deeper into her dead colleague's life, she finds out that Mandy isn't such a stranger after all. And that Mandy's not the only one at the firm with something to hide.

It's June 2008 and 21-year-old Adam Lattimer vanishes, presumed dead. The strain of his disappearance breaks his already fragile family. Ten years later, with his mother deceased and siblings scattered across the globe, Adam turns up unannounced at the family home. His siblings return reluctantly to Spanish Cove, but Adam's reappearance poses more questions than answers. The past is a tangled web of deceit. And, as tension builds, it's apparent somebody has planned murderous revenge for the events of 10 years ago.

Late one night a man walks into the luxurious home of disgraced banker Harry McNamara and his wife, Julie. The man launches an unspeakably brutal attack on Harry as a horror-struck Julie watches, frozen by fear. Just an hour later the attacker, JP Carney, has handed himself in to the police. He confesses to beating Harry to death, but JP claims that the assault was not premeditated and that he didn't know the identity of his victim.

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.

Detective Chief Inspector Harry Grimm is forced to take leave from Bristol’s Major Investigations Team when his boss, tired of Harry chasing the ghost of his murderous father, sends him north on secondment. Used to city life and high stress, Harry fears his life will now be spent handing out speeding tickets, finding lost sheep, and directing tourists. But when a local teenager runs away, Harry finds himself pulled into an investigation much worse than anyone could have ever expected. 

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.

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.