Claire's family has gone nuclear. Her precious moppets keep calling Childline when she feeds them broccoli, she's utterly Ottolenghied out at weekends, and her darling husband is having an affair with her best friend.

The question isn't whether she needs a glass of wine, but is there one big enough?

Enter the Sauvignon Sisterhood, a new set of friends brought together by a shared love of liquid therapy. Together they might just be able to convince Claire that, like a good bottle of red, life really can get better with age. Or at least there's more to it than the joy of an M&S non-iron school uniform.