London, 1923. Newly minted research assistant Saffron Everleigh is the first woman to hold the position at University College of London. When she attends a dinner party for the school, she expects to engage in conversations about the university's large expedition to the Amazon. What she doesn’t expect is for Mrs. Henry, one of the professors’ wives, to drop to the floor, poisoned by an unknown toxin. Dr. Maxwell, Saffron’s mentor, is the main suspect, and evidence quickly mounts.

Fiona, Sue, and Daisy, three retired ladies who volunteer at the local charity shop, Dogs Need Nice Homes, can’t believe their favorite customer is dead. Eighty-six-year-old Sarah Brown was found murdered in her hallway by her delivery man, a domino clutched in her hand—with a name scratched on it. When another person is found dead with a domino in their hand, and with the police making no progress, the ladies will need to help unmask a serial killer. At least they have Fiona’s scruffy-haired terrier cross to assist them.

December 1927. Mystery-writer Marius Quin has one previous bestseller, endless looming mortgage payments, and no idea how to write his next book. When his childhood friend Lady Isabella Montague invites him to an intimate New Year’s Eve party hosted by a narcissistic actor, Marius seizes upon the distraction. With his perpetually glum Basset hound along for the ride, he navigates the snowy lanes to the opulent estate of Everham Hall. As the celebrations begin, fireworks light up the sky, champagne corks pop, and then the host is murdered…

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.

It was a hell of a long shot.... CIA assassin Fortune Redding is about to undertake her most difficult mission ever - in Sinful, Louisiana. With a leak at the CIA and a price placed on her head by one of the world's largest arms dealers, Fortune has to go off-grid, but she never expected to be this far out of her element.