The Expats by Chris Pavone

Kate Moore is a working mother, struggling to make ends meet, to raise children, to keep a spark in her marriage . . . and to maintain an increasingly unbearable life-defining secret. So when her husband is offered a lucrative job in Luxembourg, she jumps at the chance to leave behind her double-life, to start anew.

She begins to reinvent herself as an expat, finding her way in a language she doesn’t speak, doing the housewifely things she’s never before done—play-dates and coffee mornings, daily cooking and unending laundry. Meanwhile, her husband works incessantly, doing a job Kate has never understood, for a banking client she’s not allowed to know. He’s becoming distant and evasive; she’s getting lonely and bored.

Then another American couple arrives. Kate soon becomes suspicious that these people are not who they claim to be, and terrified that her own past is catching up to her. So Kate begins to dig, to peel back the layers of deception that surround her. She discovers fake offices and shell corporations and a hidden gun; a mysterious farmhouse and numbered accounts with bewildering sums of money; a complex web of intrigue where no one is who they claim to be, and the most profound deceptions lurk beneath the most normal-looking of relationships; and a mind-boggling long-play con threatens her family, her marriage, and her life.