S18, E15: A novelist is found dead in her car, which appears to be a suicide at first inspection, but Detectives Cyrus Lupo (Jeremy Sisto) and Kevin Bernard (Anthony Anderson) have reason to believe a cult known as "Systemotics" is involved. The victim's husband, Bradley Cameron (guest star Daniel London) explains to the detectives that he and his wife were paranoid that members of the cult had been trailing them recently. However, Bradley comes under suspicion as the detectives begin to chip away at his alibi. When the case goes to trial, ADA Michael Cutter (Linus Roache) has trouble prosecuting his case when several members of the jury fear for their own safety. Sam Waterston, S. Epatha Merkerson, and Alana De La Garza also star.