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.

The daughter of a Burmese mother and a white American father, Alex Wagner grew up thinking of herself as a "futureface"—an avatar of a mixed-race future when all races would merge into a brown singularity. But when one family mystery leads to another, Wagner's post-racial ideals fray as she becomes obsessed with the specifics of her own family's racial and ethnic history.