Doctor Who (2005) Season 10 Episode 4 Knock Knock

In "Doctor Who" season 10 episode 4, entitled "Knock Knock," the Doctor and his companion Bill find themselves in 21st century Britain, searching for a new place for Bill to live. When they spot an ad for a decrepit old house, they jump at the chance, unaware of the horror that awaits them.

The house itself is a gothic masterpiece, looming large and dark on the edge of a desolate park. Its eccentric owner, a mysterious old man named Mr. Landlord, seems welcoming enough, but there's something unsettling about him and the peculiar rules he sets for the house's new inhabitants.

As night falls and the house begins to creak and groan, the Doctor, Bill, and their new housemates start to realize that they might not be alone after all. Strange, knocking sounds permeate the air, and it soon becomes clear that something malevolent is lurking in the shadows.

With the help of a group of intrepid students, the Doctor sets out to uncover the truth about the house and the sinister force that seems to be controlling it. But as the night wears on and the situation grows increasingly desperate, it becomes clear that they may be in over their heads.

"Knock Knock" is a chilling, atmospheric episode that plays on classic horror tropes to great effect. The house itself is a character in its own right, full of menace and mystery, and the Doctor and Bill make for a dynamic duo as always. The episode also delves into some interesting themes about family, aging, and the fear of change, adding depth and substance to the spooky proceedings.

Overall, "Knock Knock" is a standout episode that will leave viewers on the edge of their seats. Whether you're a longtime "Doctor Who" fan or new to the show, this is one episode you won't want to miss.