Imagine nine women meeting. Tea and cake are on the coffee table. They've come together to share their love of books. They are friends. They trust each other. It's a happy gathering. What could be more harmless?

Then scratch the surface and look closer.

One is lonely. One is desperate and one of them is a killer.

When the body of a woman is discovered on a Cambridge common, DCI Barrett and DI Palmer are called in to investigate. But the motive behind the crime isn't clear... And it all leads back to a book club.

As the lies, volatile friendships and tension among the group rise to the surface, DCI Barrett and DI Palmer must work out the motive and track down a cold-blooded killer. But just when they think they are on the right track, a twist in the case throws them off course...