When Caroline Daniels takes a deadly fall in front of a train and her lover fails to turn up at the funeral, Zoë Boehm wants nothing to do with the case. But Caroline's boss is persistent, and as Zoë attempts to unlock the secrets of a woman she's never met while in search of a man who could be anywhere, she starts to wonder if he's found her first. And if he has, will that make her the next victim?

When a young man breaks into South Oxford Nursery School with a gun and takes a group of hostages, teacher Louise Kennedy is fearful. But Jaime Segura isn’t there on a homicidal mission. Bad Sam Chapman - head of the intelligence service’s internal security force, the Dogs - tries to find out what Jaime is after. But the only person Jaime will talk to is Ben Whistler, an MI6 colleague of Jaime’s lover, Miro - who has gone missing with a quarter of a billion pounds.... 

When a body is hauled from the River Tyne, Sarah Tucker heads to Newcastle for a closer look. She identifies the dead woman as Private Detective Zoë Boehm, but putting a name to the corpse only raises further questions. Did Zoë kill herself, or did one of her old cases come back to haunt her? Coincidence is an excuse that soon appears pretty unconvincing. Sarah can’t leave until she’s found the answers to her questions, however dangerous they might turn out to be.

When Zoë Boehm agrees to track down the gang who knocked over Sweeney’s jewellery shop, she certainly doesn’t expect to wind up in a coffin. But she’s about to become entangled with a strange collection of characters, starting with suicidal Tim Whitby, who’s dedicating what’s left of his life to protecting Katrina Blake from her late husband’s brothers, Arkle and Trent. Unfortunately for Zoë, Arkle has a crossbow, Tim has nothing left to lose and even Katrina has her secrets.

Slough House is Jackson Lamb’s kingdom; a dumping ground for members of the intelligence service who’ve screwed up: left a secret file on a train, blown surveillance, or become drunkenly unreliable. They’re the service’s poor relations – the slow horses – and bitterest among them is River Cartwright, whose days are spent transcribing mobile phone conversations.

Tom Bettany is working at a meat processing plant in France when he gets a voicemail telling him that his estranged 26-year-old son is dead. Liam Bettany fell from his London balcony, where he was smoking dope. Now, for the first time since he cut all ties years ago, Bettany returns home, to find out the truth about his son's death. But more than a few people are interested to hear Bettany is back in town. He might have thought he'd left it all behind when he first skipped town, but nobody really just walks away.

When disgraced spy Solomon Vine's friend and rival Gabriel Wilde vanishes without trace, it's only Vine who might be able to discover what has happened to him. A single missing file holds the key. That, too, is gone. But its contents, Vine is told, are incendiary. There were few Wilde could trust. And being one of them appears to have fatal consequences. But as Vine's off-the-books investigation begins to reveal the shocking truth, he realizes there's much more at stake than one man's life.

A Russian defector is found brutally murdered in a London hotel. Only four people knew he had turned - the four most important and powerful figures in Whitehall. There's only one conclusion - a mole has infiltrated the highest levels of the nation's security. Operating in secret from within Westminster's darkest corners, former spy Solomon Vine must uncover the traitor. Because Britain's future hangs in the balance. And with it the fate of the whole world.

Nothing good ever comes from a midnight phone call. For washed-up spy Harry Tower, it is the worst news at the worst possible time. His son, Sean, has gone missing in troubled Iran after writing an exposé about government corruption. Their relationship has never recovered since Harry's wife's suicide, for which Sean holds his father responsible. And Harry, with his career on the verge of disintegration, needs to find him and put things right.

1993: student Lachlan Kite is sent to post-Soviet Russia in the guise of a language teacher. In reality, he is there as a spy. Top secret intelligence agency BOX 88 has ordered Kite to extract a chemical weapons scientist before his groundbreaking research falls into the wrong hands. But Kite’s mission soon goes wrong and he is left stranded in a hostile city with a former KGB officer on his trail.

Ryan Wilkins grew up on a trailer park, a member of what many people would call the criminal classes. As a young Detective Inspector, he's lost none of his disgust with privileged elites - or his objectionable manners. But he notices things; they stick to his eyes. His professional partner, DI Ray Wilkins, of affluent Nigerian London heritage, is an impeccably groomed, smooth-talking graduate of Balliol College, Oxford. You wouldn't think they would get on. They don't. But when a young woman is found strangled at Barnabas Hall, they're forced to. 

When lawyer Daniel Connell receives a visit from his troublemaking old flame, Victoria, pleading for his help, he looks for any excuse not to get involved. But no one else believes her pleas of innocence, and Daniel can see she is terrified. As he enters Vick's life once more, Daniel's search for truth leads from the dark heart of Essex to the mountains of Afghanistan and a terrifying world where monsters are real - and nothing is sacred.

Six weeks before she is due to take up her position as the first female head of MI6, Amelia Levene vanishes without a trace. Her disappearance is the gravest crisis MI6 has faced for more than a decade. There has been no ransom demand, no word from foreign intelligence services, and no hint of a defection. Should news of Levene’s disappearance leak out, the consequences would be catastrophic. But for disgraced MI6 officer Thomas Kell, the crisis offers a chance for redemption.

Julian Lawndsley has renounced his high-flying job in the City for a simpler life running a bookshop in a small English seaside town. But only a couple of months into his new career, Julian's evening is disrupted by a visitor. Edward, a Polish émigré living in Silverview, the big house on the edge of town, seems to know a lot about Julian's family and is rather too interested in the inner workings of his modest new enterprise. When a letter turns up at the door of a spy chief in London warning him of a dangerous leak, the investigations lead him to this quiet town by the sea.

They killed Robert Harland today, and they're going to kill the rest of you. This is the warning private investigator Paul Samson receives right after Joni Fremantle, the woman he has been guarding for a mysterious client, gives him the slip. No time to worry about that now: his life, and those of Denis Hisami, Anastasia Christakos and even the young Syrian Naji, is on the line. Samson is sure he knows why - to expose a company supplying funds to far-right groups across Europe is to paint a target on your own back.