Investigative journalist Riley Spartz discovers that a serial killer may be targeting women named Susan and killing one on the same day of each year, and takes on an obstinate news director and a politician in fear of negative publicity in her campaign to find the murderer.

When a member of a Minnesota Amish community is found brutally murdered, investigator Riley Spartz encounters cultural challenges to traditional police procedures before uncovering clues about a dark web of fraud and deception.