On the shelf, but still best friends . . .
Cath is scatty, messy and guarded. While Si is impossibly tidy, bitchy and desperate for a man of his own. They are total opposites - but equally unlucky in love. And they've stuck together through thick and thin. Because that's what best friends do.
So when their beautiful friend Portia - the undisputed queen of their group of friends at university - steps back into their lives after a ten-year gap, her reappearance tests Cath and Si's friendship to the limit.
What does Portia want? Will she be a force for good in their lives, or something darker? And will Cath and Si ever get lucky in love?