This show-within-a-show followed a journalist investigating a series of disappearances linked to a cult following of a popular TV show. Summary of Themes

Some listings for this episode also detail the story of Terri Lemoine , who lived with Gillis, a seemingly "loveable computer nerd". She was shocked when police revealed he was actually a serial killer who had murdered and mutilated eight women. 2. The Imperfects (Sci-Fi/Drama, 2022)

The episode tells the story of Barbra, who believed she had married her soulmate—a successful Manhattan surgeon. However, her life unraveled upon discovering his dark secrets.

This episode shifts from true crime to science fiction. Dr. Sarkov sends the team on a mission to Idaho to retrieve nanobots needed to distribute his cure. Meanwhile, Burke and Finch collaborate to stay one step ahead of the antagonist, Dr. Crain. 3. Cult (Mystery/Thriller, 2013)

In this documentary-style series, , titled "Devil of a Husband," focuses on the terrifying case of Sean Vincent Gillis .

Across these various adaptations, the "Devil You Know" theme consistently revolves around: