After being dragged from the wreckage of a collapsed building, only to be faced with the realization that something is seriously wrong with Riley, Kim Phillips - homicide detective and Medium - is forced to confront a looming disaster she barely understands. With Riley growing weaker and Priya seemingly Turning, it's up to Kim to save them both and, maybe, save Chicago at the same time. In the exciting conclusion of The Affinity Series, join Kim as she tackles her greatest challenge yet.