It is the Edinburgh Festival. People queuing for a lunchtime show witness a road-rage incident--an incident which changes the lives of everyone involved. Jackson Brodie, ex-army, ex-police, ex-private detective, is also an innocent bystander--until he becomes a suspect. With Case Histories, Kate Atkinson showed how brilliantly she could explore the crime genre and make it her own. In One Good Turn, she takes her masterful plotting one step further.

Jackson Brodie has relocated to a quiet seaside village in North Yorkshire, in the occasional company of his recalcitrant teenage son Nathan and ageing Labrador Dido, both at the discretion of his former partner Julia. It’s a picturesque setting, but there’s something darker lurking behind the scenes. Jackson’s current job, gathering proof of an unfaithful husband for his suspicious wife, seems straightforward, but a chance encounter with a desperate man on a crumbling cliff leads him into a sinister network - and back into the path of someone from his past. 

Ruby Lennox was conceived grudgingly by Bunty and born while her father, George, was in the Dog and Hare in Doncaster, telling a woman in an emerald dress and a D cup that he wasn't married. Bunty had never wanted to marry George, but there she was, stuck in a flat above the pet shop in an ancient street beneath York Minster, with sensible and sardonic Patrica, aged five; greedy, cross-patch Gillian, who refused to be ignored; and Ruby...

The four Bliss siblings have a loving but complicated bond, but when their mother, Dorothy, dies seemingly without a will, this relationship is put to the test. As the mourning siblings try to make sense of the situation, one of them is caught with a secret: before she died, Dorothy entrusted her favourite daughter with her will and a letter - and told her to destroy them both. But what Anna finds in the documents could change everything. Do the other siblings not deserve to know what it is about them that their mother was so desperate to hide?

Nat, a 47-year-old veteran of Britain's Secret Intelligence Service, believes his years as an agent runner are over. He is back in London with his wife, the long-suffering Prue. But with the growing threat from Moscow Centre, the office has one more job for him. Nat is to take over The Haven, a defunct substation of London General with a rag-tag band of spies. The only bright light on the team is young Florence, who has her eye on Russia Department and a Ukrainian oligarch with a finger in the Russia pie.