In 1993 the town of Taos in New Mexico petitioned Congress to conduct an investigation into the strange humming sound heard by over 1400 of its residents. The source of the hum could not be isolated to any one thing and the investigation was quickly closed. A thousand miles away, a deputy is murdered and Sheriff Russell Jent discovers a strange connection between the case and a man he put away over ten years prior-nearly 100 murders have ties to the relatively unknown town of Taos and the strange hum that is heard there.