It should have been the perfect holiday lazy days with friends in a rambling old house right on the beach But when one family drops out and Kath invites her brother and father along instead, everything starts to unravel All Kath wants is to have sex with her husband without a small child bursting in and demanding toast and Marmite Her brother Rob wants to find out whether he has a hope in hell with the woman he loves Giles wants to find a way to get closer to his daughter, while eight-year-old Anna just wants to be a mermaid And, at the heart of it all is Miranda - beautiful, bold and baffling Miranda - who wants nothing more than to survive the week without anyone suspecting the truth