"Criminal Minds" is known for its intense and horrific plotlines. In the Season 5 episode, "Our Darkest Hour," the Behavioral Analysis Unit (BAU) uncovers a serial killer who exploits city-wide blackouts in Los Angeles. The chilling realization that this murderer, played by Tim Curry, had been using blackouts as a cover for his heinous deeds for almost 30 years stirs fear. In the episode "The Boogeyman," a shocking twist revealed a child, Jeffrey Charles, as the culprit of child murders in a small Texas town. The horrifying idea of a child committing such atrocities resonated with fans. In "North Mammon," the terror heightened as three abducted teenage girls had to choose one of them to be sacrificed. The awful choice they were forced to make disturbed viewers. Equally troubling was "Mosley Lane," where the BAU worked on a years-old case of child abductions and saved children from facing a grisly fate in a crematorium at a funeral home.