Two innocent victims, strangled to death on consecutive Saturday nights. Even as they see the pattern emerging, retired detective Arn Anderson and TV reporter Ana Maria Villarreal can't seem to convince the Cheyenne police that the killer may strike again.

Hunting a remorseless murderer leads Arn and Ana Maria down a rabbit hole of ranchers and rustlers. But the closer they come to catching the killer, the more they're met with suspicion. And when their investigation collides with a desperate act of violence, they wonder whether they're unwinding the killer's twisted thread of clues or tightening their own noose.