Ep 11. The Crimson Horror

In the Doctor Who (2005) season 7 episode 11 "The Crimson Horror," the Doctor and his companion, Clara, investigate strange occurrences in a Victorian era town called Sweetville. The town has been sealed off from the rest of the world by its founder, Mrs. Gillyflower, and her daughter, Ada. The Doctor and Clara soon discover that the town's residents are under the influence of a red "cure" that turns them into red, waxy statues.

The Doctor and Clara meet the town's resident investigator, a man named Winifred Gillyflower, who is working with Mrs. Gillyflower to build a "better world" in Sweetville. The Doctor, Clara, and Winifred investigate a factory that is producing the red "cure" and discover that Mrs. Gillyflower is planning to use the cure to wipe out humanity and start again with a select few "worthy" individuals.

As the Doctor and Clara try to stop Mrs. Gillyflower's plan, they encounter a mysterious woman named Jenny, who has her own connection to Sweetville and the red "cure." Together, the group faces off against Mrs. Gillyflower and her supporters in an epic battle to save the world from destruction.

"The Crimson Horror" is a thrilling and action-packed episode that showcases the Doctor's wit and bravery as he fights to save humanity yet again. The episode also explores themes of discrimination and the dangers of exclusive ideologies. With a strong cast of characters and a gripping plot, "The Crimson Horror" is a must-watch for Doctor Who fans.