The war is over. Juliet Ashton is grappling with writer's block when she receives a letter from Dawsey Adams of Guernsey - a total stranger living halfway across the Channel, who has come across her name written in a second-hand book. Juliet begins writing to Dawsey, and in time to everyone in the extraordinary Guernsey Literary and Potato Peel Pie Society. The society tell Juliet about life on the island - and the dark years spent under the shadow of German occupation.
Drawn into their irresistible world, Juliet sets sail for Guernsey, changing her life - and theirs - forever.