Doctor Who: The Unicorn and the Wasp

This episode was wonderful! Really fun and silly, excellently cast (including Felicity Kendall), and with some nice ideas well handled. The Doctor and Donna turn up at a garden party in 1926, where author Agatha Christie arrives, and they are soon embroiled in a murder mystery at the Manor.

Twists and turns in a fast-paced plot, whacky characterisation from Donna, and a giant wasp. What more could you ask for?