|summary=Kate Moore, housewife, mother and secret CIA operative, jumped at the chance to leave her past in order to move to Luxembourg with her husband, Dexter. This would mean a new life to go with Dexter's nerdy new IT job and new friends. However the new friends aren't what they seem, and Kate's past? Well, that isn't quite as eager to leave Kate.
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Kate and Dexter Moore move to Luxembourg, along with their two young sons; a world away from their native Washington DC. The incentive is Dexter's great new job which will mean an expat lifestyle for a year or two, but good money and the chance to explore Europe. In the process Kate will be turning her back on more than Dexter realises. Up till their move to Luxembourg, Kate has led a secret double life as a CIA operative. As Kate comes to terms with the boredom of being a full-time housewife in an alien culture, they meet Bill and Julie, also expat Americans. They soon become friends, but Kate has her suspicions and discovers that the past is never far away.