"Requiem" is the twenty-second episode and the finale of the seventh season of the science fiction television series The X-Files, and the show's 161st episode overall. It premiered on the Fox network in the United States on May 21, 2000. The episode was written by Chris Carter, and directed by Kim Manners. The episode helped to explore the series' overarching mythology. "Requiem" earned a Nielsen household rating of 8.9, being watched by 15.26 million viewers in its initial broadcast. The episode received mostly positive reviews from television critics. Many applauded the way it made the series' increasingly marginalized alien mythology relevant again, although others lamented the partial loss of David Duchovny.