After a notorious serial killer is executed, a copycat begins murdering women in the same Oklahoma town and in the same fashion, and the BAU must act fast before more victims are found. At the same time, Prentiss gets nervous at the thought of a major real-estate purchase.
- Mackenzie Astin - Dylan Kohler
- Glenda Chism-Tamblyn - Witness
- Kelly Curran - Karla Demshure
- Lisa Darr - Helen Garrett
- Steven Howell - Gary Hazlett
- Eddie Kehler - Rodney Baines Garrett
- Leigha Kingsley - Cara Smith
- Jo Beth Locklear - Emily Sisk
- Bob McCracken - Warden Tom Hansen
- Anna Rubley - Jodie Armstrong
- Casey Sander - Detective Jon Childers
- Aaron Hotchner: "Sooner murder an infant in its cradle than nurse un-acted desires." — William Blake
- Emily Prentiss: "It is only in love and in murder that we still remain sincere." — Friedrich Dürrenmatt
- A "divining rod" (also referred to as a "dowsing rod" and a "witching rod") is a Y- or L-shaped twig or rod used during dowsing, a type of divination that specializes in the search of ground water and other valuable objects without the use of a scientific apparatus.