Everything and nothing

"On the surface, Ruth and Christian seem like an ordinary working couple with two kids -- and a home in chaos. As the cracks in their marriage widen, they decide to get their very own super-nanny, Aggie. Quietly efficient, she brings calm and order, and the children adore her. But why is Aggie so eager to gain their trust? Is there something sinister about her efforts to create the perfect family? And what is she really doing in their home?"--Page 4 of cover.