Mark was the most dangerous killer-for-hire in the world. But after learning the hard way that his life’s work made him more monster than man, he left all of that behind, and joined a twelve-step group for reformed killers. When Mark is viciously attacked by an unknown assailant, he is forced on the run. From New York to Singapore to London, he chases after clues while dodging attacks and trying to solve the puzzle of who’s after him. All without killing anyone. Or getting killed himself. For an assassin, Mark learns, nonviolence is a real hassle.

Former stand-up comic Juno Mulligan has been suffering a serious sense-of-humour failure. Not only has she lost the love of her life, but she’s having to relocate to the (admittedly idyllic) village of Inkbury to watch out for her elderly mother, who she’s genuinely worried might be marrying a wife-killer. She hopes that her old friend, disgraced-journalist-turned-novelist Phoebe Fredericks can help her crack the case of whether her mother’s perma-tanned, iceberg-smiled, three-times-a-widower fiancé is hiding a murderous past.

London, 1941: Miss Jane Treen is at her desk, strong black coffee in hand and fluffy ginger cat by her side, when her top-secret government work is interrupted by an urgent call to Devon. A woman has been found dead in a lake in a place where she shouldn’t have been. Jane needs to gather the clues and find the killer before someone else from the agency gets hurt… Shy and handsome code-breaker Arthur Cilento is bewildered by the arrival of the efficient Miss Treen and her cat Marmaduke.

Widow Mimi lives on idyllic Mackinac Island, where cars are not allowed and a Gibson martini with three onions at the witching hour is compulsory. Her estranged granddaughter, Addie, is getting over the heartbreak of not only being dumped by her fiancé, Brian, but also being cut out of the deal for the brilliantly successful video game Murderscape they invented together (with Addie doing most of the heavy lifting).

Meet Agatha Dorn, cantankerous archivist, grammar pedant, gin afficionado and murder mystery addict. When she discovers a lost manuscript by Gladden Green, the Empress of Golden Age detective fiction, Agatha's life takes an unexpected twist. She becomes an overnight sensation, basking in the limelight of literary stardom. But Agatha's newfound fame takes a nosedive when the 'rediscovered' novel is exposed as a hoax. And when her ex-lover turns up dead, with a scrap of the manuscript by her side, Agatha suspects foul play.