"The Well" is the third episode of the fifteenth series of Doctor Who, which aired on April 26, 2025

. The story is set far in the future on a harsh, brutal planet where a mining colony has been devastated, leaving only one survivor. The Doctor, played by Ncuti Gatwa, and his companion Belinda Chandra, played by Varada Sethu, arrive to uncover the truth behind the colony's destruction and face a terrifying threat

. The episode blends hard science-fiction elements with surreal and abstract themes, drawing on folklore and fairy tales. It features a mysterious monster and explores themes of perception and reality, with notable references to previous Doctor Who episodes such as "Midnight," "The Impossible Planet," and "Turn Left"

. The sole survivor, Aliss Fenly, is a deaf character portrayed by Rose Ayling-Ellis, adding a layer of social commentary on inclusion and visibility for marginalized groups

. The episode was written by Russell T Davies and directed by Amanda Brotchie, with a cast including Ncuti Gatwa, Varada Sethu, Rose Ayling-Ellis, and others

. It has received positive reviews for its intriguing mystery, strong performances, and thematic depth, marking a highlight in the current series