• 77%
    2.3k votes
  • Rate this episode
    What did you think?

Doctor Who: Season 10

10x04 Knock Knock

  • 2017-05-06T17:45:00Z on BBC One
  • 44 mins
  • United Kingdom
  • English
  • Drama, Action, Adventure, Science Fiction, Fantasy

Bill is moving in with some friends and they’ve found the perfect house – so what if it’s strangely cheap to rent, and the landlord is a little creepy?

The wind blows, the floorboards creak, and the Doctor thinks something is very wrong. What lurks in the strange tower at the heart of the building – and why can’t they find any way to enter it?