"How is 'Harvey Wallbanger' one word?!"

4.07 "The Unicorn and the Wasp"

This episode made me wish I knew a lot more (or anything at all) about Agatha Christie. She was really lovely and the murder mystery aspect of the story was fun. As was the tie-in with Agatha Christie's mysterious ten day disappearance. The whole scifi aspect, with the woman giving birth to a wasp child who didn't know it's own identity until it was fused with the weird amulet thing, was all a little bizarre and contrived. Whatever, though. It was a fun story and pleasantly un-message-y (a huge relief after last week).

Obviously sight gag-type interactions that involve David Tennant and Catherine Tate are just destined to be funny. This episode had a charades scene that was almost as hilarious as the pantomime scene from "Partners in Crime". Also, Donna sitting in the back of the room being the spectator, munching on grapes and asking questions, while Agatha Christie and the Doctor expositioned the killer was pretty amusing as well.

I don't think this one was very related to the overall seasonal arc. Donna mentioned the bees again, so that's either the Bad Wolf/Torchwood/Saxon of this season, or it's one giant red herring. I'm excited for next week. It takes place in the largest library in the universe. I wonder if it'll be called Alexandria or Pergamum, or some variation on one of the two.