The Behavioral Analysis Unit (BAU) travels to , to investigate a series of murders involving victims whose bodies are covered in scratches. The investigation reveals that the UnSub (Unknown Subject) suffers from Morgellons disease , a delusional skin infestation where the sufferer believes their skin is infested with bugs or fibers. The UnSub: Leo Jenkins
: He kidnaps individuals he believes are part of the "cover-up" or who can help him expose the "truth." He uses a high-frequency device to stimulate the sensation of "crawling" in his victims to make them understand his pain. [S10E4] The Itch
The BAU successfully tracks Jenkins to a basement where he is holding a victim. After a tense standoff, the team manages to apprehend him without further loss of life. The episode concludes with a somber reflection on the thin line between physical ailments and the devastating effects of untreated mental illness. The Behavioral Analysis Unit (BAU) travels to ,
: Jenkins targets members of a Morgellons support group, believing they are being silenced. The BAU successfully tracks Jenkins to a basement
: Leaving the victims' bodies in public spaces after they have scratched themselves to death or been killed during his "experiments." Key Plot Points
Reviewers from TV Fanatic noted that the episode was particularly effective due to its "creepy-crawly" atmosphere and the empathetic way it handled the intersection of mental health and grief, specifically highlighting Hotch's "gentle" profiling of Lisa. AI responses may include mistakes. Learn more
: A former journalist who lost his sanity after the death of his son. He became obsessed with the idea that a government conspiracy or an environmental factor caused his "infestation."