A shadowy killer stalks the mountains of Colorado, using the endless wilderness to conceal his crimes. He disappears his victims so completely that no one is even aware he exists. Fate and a hundred-year storm intervene in his crime spree, bringing evidence of his murders to light.

Sheriff Trap Stevens and the brilliant county coroner Grey Duncan try desperately to identify the killer, facing no leads and little evidence. As they are drawn into the investigation, the fallout will ultimately bring them and those they love to the very edge of death. Against this backdrop of unspeakable violence, Trap is forced to reconcile his growing feelings for Deputy Jane Fremont and confront the mysterious circumstances of his first wife's death.