The brutal murders of two young women in the caves along the Mississippi River pull St. Paul Homicide Detective John Santana into a case with all the telltale signs of a serial killer. Except that one of the victims doesn't fit. Santana's search for answers unearths connections between the first victim, an NTSB accident investigator, and the crash of an airliner off the California coast. He soon finds himself embroiled in a complex investigation that takes him from St. Paul, Minnesota to Washington DC and ultimately to Colombia in a race to thwart a dangerous technology that could cause a global economic meltdown. In a case fraught with internal and external politics, Santana must speak for the dead, while trying to finally make peace with the past.