Cass County, Minnesota: A sheriff’s deputy steps out of a diner on a rainy summer evening, and a few minutes later, he’s lying dead in the mud. When BCA agent Kirk Stevens arrives on the scene, he discovers local authorities have taken into custody a single suspect: A hysterical young woman found sitting by the body, holding the deputy’s own gun. She has no ID, speaks no English. A mystery woman.
The mystery only deepens from there, as Stevens and Carla Windermere, his partner in the new joint BCA–FBI violent crime task force, find themselves on the trail of a massive international kidnapping and prostitution operation.