We Solve Murders (We Solve Murders, #1) by Richard Osman

How to catch a killer: put off early retirement. A cat-and-mouse race against time from the witty, sharp and sly voice of Richard Osman.

A brand new series. An iconic new detective duo. And a puzzling new murder to solve...

Steve Wheeler is enjoying retired life. He does the odd bit of investigation work, but he prefers his familiar habits and routines: the pub quiz, his favorite bench, his cat waiting for him when he comes home. His days of adventure are over: adrenaline is daughter-in-law Amy’s business now.

Amy Wheeler thinks adrenaline is good for the soul. As a private security officer, she doesn’t stay still long enough for habits or routines. She’s currently on a remote island keeping world-famous author Rosie D’Antonio alive. Which was meant to be an easy job... 

Then a dead body, a bag of money, and a killer with their sights on Amy have her sending an SOS to the only person she trusts. A breakneck race around the world begins, but can Amy and Steve stay one step ahead of a lethal enemy?