Michael and Wendy Mixner are a Brooklyn-based couple whose marriage is failing in the wake of their daughter's stillbirth. Michael, a Wall Street trader, has secretly lost the couple's life savings. Wendy, a digital marketing strategist, has been hired onto a data-mining project of epic scale, whose mysterious creator has ambitions to reshape America's social and political landscapes. When Michael's best friend is murdered, the evidence leads back to Wendy's client, setting off a dangerous chain of events that will profoundly change the couple - and the country.