What if you had the chance to live your life again and again, until you finally got it right? During a snowstorm in England in 1910, a baby is born and dies before she can take her first breath. During a snowstorm in England in 1910, the same baby is born and lives to tell the tale. What if there were second chances? And third chances? In fact an infinite number of chances to live your life? Would you eventually be able to save the world from its own inevitable destiny? And would you even want to?

Cambridge is sweltering, during an unusually hot summer. To Jackson Brodie, former police inspector turned private investigator, the world consists of one accounting sheet--"lost" on the left, "found" on the right--and the two never seem to balance. Jackson has never felt at home in Cambridge and has a failed marriage to prove it.

Lydia is the favourite child of Marilyn and James Lee - a girl who inherited her mother's bright-blue eyes and her father's jet-black hair. When Lydia's body is found in the local lake, James is consumed by guilt, and Marilyn, devastated and vengeful, is determined to hold someone accountable. But it's the youngest in the family - Hannah - who may be the only one who knows what really happened.

In 1940, 18-year old Juliet Armstrong is reluctantly recruited into the world of espionage. Sent to an obscure department of MI5 tasked with monitoring the comings and goings of British Fascist sympathisers, she discovers the work to be by turns both tedious and terrifying. But after the war has ended, she presumes the events of those years have been relegated to the past for ever. Ten years later, now a producer at the BBC, Juliet is unexpectedly confronted by figures from her past. A different war is being fought now, on a different battleground, but Juliet finds herself once more under threat.

Eleanor Oliphant has learned how to survive - but not how to live. Eleanor Oliphant leads a simple life. She wears the same clothes to work every day, eats the same meal deal for lunch every day and buys the same two bottles of vodka to drink every weekend. Eleanor Oliphant is happy. Nothing is missing from her carefully timetabled life. Except, sometimes, everything. One simple act of kindness is about to shatter the walls Eleanor has built around herself. Now she must learn how to navigate the world....