Natty and Sean Wainwright have a rock-solid marriage with two teenage daughters, a successful hotel business, and a beautiful house. When their youngest daughter falls ill on an overseas school trip, Natty rushes to her side. Luckily, Natty's best friend, Eve Dalladay, is visiting and offers to stay with Sean to lend a hand in the Wainwright household. But Natty comes home to find that Eve has taken to family life a little too well: Sean has fallen in love with her. With no choice but to put on a brave face, Natty attempts to set her life straight again but Eve is always there to knock her down. Then Natty receives an anonymous note that reveals Eve to be a serial mistress. She's done this before--and the consequences were fatal. Now Natty must navigate through a treacherous maze of secrets that jeopardizes her life and the safety of her loved ones.