While the team initially suspects a male-female duo, Amanda is actually the one luring and killing the victims to "punish" men who behave aggressively like Adam's abuser. The Climax and Ending
The investigation focuses on a shy hotel employee named and his protective manager, Julie. [S4E20] Conflicted
The team discovers the dual personality when Adam fails a "control question" on a lie detector that his other personality, Amanda, actually knew the answer to. While the team initially suspects a male-female duo,
The Behavioral Analysis Unit (BAU) travels to South Padre Island, Texas, during spring break to investigate a series of rapes and murders targeting "alpha male" college students. The victims are found naked and posed in a fetal position, leading the team to believe they are looking for a dominant/submissive pair of killers. The Behavioral Analysis Unit (BAU) travels to South