Keep your friends close and your enemies closer . . .

Nate and Layla, Jude and Sophie. They've been a four for as long as they can remember: fancy dinners, dancing 'til dawn . . . Even living and working together.

So when Nate and Layla suddenly quit their lives and move to Bali, with its white sands and exotic beach clubs, Jude and Sophie are their first visitors. Anything to escape their life in London.

But as the two couples reunite, cracks begin to show.

Which is hardly surprising; they've been lying to each other for years.

And now, it's time for revenge.