Day 458: The Invisible Enemy Part 1

This story takes an interesting tack in that the Doctor is possessed relatively early on, about halfway into Part 1. This makes the Doctor have more of an edge, as he tries to kill Leela and other people who do not give into the Swarm, the force that is currently trying to possess much of humanity. However, it doesn't quite work. For a start, Bob Baker and Dave Martin, the story's writers, have made the decision to let Leela have extra senses to know that something is going wrong, thus meaning that she clearly knows that the Doctor is possessed, removing much of the tension that could surround the story. There's also the fact that everyone who is possessed goes into the typical 'possessed' acting, speaking slowly and making no effort to hide their true nature and you get an episode that doesn't entirely work. Hopefully the rest of the story shall improve as The Invisible Enemy continues.