The team investigates a serial rapist-turned-murderer in Illinois, whose sporadic timing of the attacks puzzles Sam as well as the connection between his victims whom are left in the woods. Sam figures out that the killer is an angry and frustrated married man taking out his rage and frustration on about-to-be-wed women. Meanwhile, with Donald Lucas, the Jack-of-All-Trades killer finally captured and imprisoned, Sam searches for a new house for her and Chloe.