The BAU is called to Dallas to investigate when a serial killer lures and kills high-powered executives by posing as a high-class call girl.
Susan professes her love for Ian while Gaby and Carlos try to rekindle their love, and Bree is confronted with Orson's past.
When a government scientist goes missing, Abby is recruited to carry on his work, but the team worries that she may meet the same fate as her predecessor.
Lightman goes head-to-head with the leader of a self-help empire (guest star David Sutcliffe) to free a wealthy woman (guest star Julia Campbell) who may be under the control of the cult-like leader. When Lightman begins to investigate, things get personal as he suspects the group of threatening him and his daughter, Emily.
Randall and William take a road trip to Memphis, where Randall learns about his biological father's past.