Lucas Davenport investigates the discovery of several bodies in an abandoned Minnesota farmyard, and realizes they are the work of a local serial killer who has been murdering one victim every summer for years.
Lucas Davenport deals with security concerns during preparation for the Republican National Convention, as a criminal from his past targets his fourteen-year-old daughter.
Investigating the seemingly open-and-shut double homicide case involving a pair of wealthy elderly women, Lucas Davenport begins to suspect that the handful of small items that were stolen from the crime scene may have had more significant values.