Holly Macintosh is sitting round her kitchen table with her oldest friends - friends she hasn t seen since school - now reunited by an unexpected tragedy and catching up on the past 20 years. On the surface, they are all successful and happy. But scratch a little deeper after that extra glass of wine and it s not quite so straightforward: Paul and Anna are struggling to have a baby, Saffron the actress is still waiting for that really big break that - at 39 - is looking less and less likely, and Olivia, always the wallflower of the group, is newly single and mourning her lost love.