When FBI profiler Kaely Quinn's mother is diagnosed with cancer, Kaely takes time off work to go to Dark Water, Nebraska, to help her brother care for their mother. Upon her arrival, she learns of a series of fires in the small town, attributed by the fire chief to misuse of space heaters in the frigid winter. But Kaely is skeptical, and a search for a pattern in the locations of the fires bolsters her suspicions. After yet another blaze devastates...