They thought they were friends for life - until one summer, everything changed . . .
Linston End on the Norfolk Broads has been the holiday home to three families for many years. The memories of their time there are ingrained in their hearts: picnics on the river, gin and tonics in the pavilion at dusk, hours spent seeking out the local swallowtail butterflies. Everyone together.
But widower Alastair has been faced with a few of life's surprises recently. Now, he is about to shock his circle of friends with the decisions he has made - and the changes it will mean for them all. For some, it feels like the end.
For others, it might just be the beginning...