Worst. Idea. Ever. What's a little white lie between best friends?

The Queen of the Revenge Comedy returns with a razor-sharp new novel about friendship and secrets . . .

Georgia and Lydia are so close they're practically sisters.

So when Lydia starts an online business that struggles, Georgia wants to help her - but she also understands Lydia's not the kind to accept a handout.

Setting up a fake Twitter account, Georgia hopes to give her friend some anonymous moral support by posing as a potential customer.

But then Lydia starts confiding in her new internet buddy and Georgia discovers she doesn't know her quite as well as she thought.

Especially when Lydia reveals a secret that could tear Georgia's marriage apart . . .