Set in Edinburgh, Scotland. To be a Scottish woman, some say, is to be born with your heart on your sleeve, a fire in the soul and a mouth that cannot be controlled ... Scotland, 2019. Fran's husband appears on Heather's doorstep choking on a secret. Fran and Heather haven't talked for a year and Hector begins to shed a light on why. It is only by going back to the beginning of their friendship that they will understand what life events drove a wedge between them, and whether faith and friendship is possible to repair. Two women. Multiple secrets. The question is: how to forgive your best friend with a heart full of thistles?