| 268 – "Knock Knock" | |||
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| Doctor Who episode | |||
| Cast | |||
Others
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| Production | |||
| Directed by | Bill Anderson | ||
| Written by | Mike Bartlett | ||
| Produced by | Nikki Wilson | ||
| Executive producer(s) | Steven Moffat Brian Minchin | ||
| Music by | Murray Gold | ||
| Series | Series 10 | ||
| Running time | 44 minutes | ||
| First broadcast | 6 May 2017 | ||
| Chronology | |||
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"Knock Knock" is the fourth episode of the tenth series of the British science fiction television series Doctor Who. It was written by Mike Bartlett and was broadcast on 6 May 2017 on BBC One.
Bill Potts (Pearl Mackie) and her friends rent a house to live in after a recommendation from its landlord (played by guest star David Suchet) but the Doctor (Peter Capaldi) notices something wrong with the house when the floor and the walls creak and creatures come crawling out of the wood.
Most critics praised the performances in the episode, although the response to the writing was more mixed.