Doctor Who S4 • Episode 7
The Unicorn and the Wasp
First aired
Saturday, May 17, 2008
Production Code
4.7
Written by
Gareth Roberts
Directed by
Graeme Harper
Runtime
45 minutes
Time Travel
Past
Locations
Earth
UK Viewers
8.41 million
Appreciation Index
86
Synopsis
In 1926, Agatha Christie mysteriously disappears, only to be found ten days later at Harrogate Hotel with no memory of what happened to her. What could have been the cause? Was it a nervous breakdown? Was it a cry for help? Or did it involve a giant alien wasp and a mysterious stranger known only as the Doctor?