Natty and Sean Wainwright are happily married. Rock solid, in fact. So when Natty's oldest friend, Eve Dalladay, appears--just as their daughter collapses on a school trip in France--Natty has no qualms about leaving Eve with Sean to help out at home while she flies to France to see her daughter. When Natty returns two weeks later, Eve has slotted into family life a little too well. Natty's husband has fallen in love with her friend. Sean's sorry, he says, but their marriage is over. With no option but to put a brave face on things, Natty embarks on building a new life for herself. And then she receives an anonymous note: Eve has done this before, more than once. Don't let her take what's yours. It seems Natty's friend has stolen other lives, and with fatal consequences.