the author has really got me intrigued already by this book. How can some one call you who you talked to on the train if you didn't give them your number - now I am hooked !! When two women meet , one is having an affair , the other's husband is having an affair with their nanny. When the nanny suddenly disappears you wonder if the other woman is trying to help in some mysterious way - but has she just hidden her or has she killed her? Will the woman's husband now forget about her. And what will happen to the woman from the train who wants to meet up ?? The plot thickens