Doctor Who Series 10: 12 Easter Eggs & References You Might've Missed In "Knock Knock'
2. The Grandmother
The genesis of this episode could well have come from an unlikely source: a creepy short film from surrealist director David Lynch.
In The Grandmother, one of Lynch's earliest works from 1970, a lonely boy grows a tree-like grandmother from magical seeds in the attic of a dark, eerie household. Needless to say, Lynch's film is far stranger and more unsettling than Knock Knock, but they do share a strong similarity in their premises.
Why are there so many easter eggs to do with grandparents this week?