"Architect Grey Cavanaugh and his girlfriend, interior designer Misty Sommer, have put their hearts and souls into production of the Star Silo, a contemporary skyscraper sure to change the St. Louis skyline for generations to come. It's the kind of opportunity that defines a career, particularly for such a young duo. But when a mysterious death sends the FBI to their doorstep, it becomes clear that there is more to this project than they know. What's also clear is that Grey's own family has some deep, dark secrets. Before they know what's happening, Grey and Misty are on the run--not just from the FBI, but from an adversary that follows no rules--and what began as the revolutionary development project that brought them together soon leaves them fighting for their lives and their love." -- (Source of summary not specified)