I love Doctor Who, but this is not his finest hour. Sylvester McCoy, as the Seventh Doctor, is clearly a fine actor, but, in this case, he was given a weak script to draw from.
While the show is not known to be exceptionally complex politically, here, it tries to be. As the Cold War was winding down, apparently the writers thought they would try to push a cliche British-Russian post-war friendliness. The message is inoffensive, but it is presented so syrupy and unbelievable.
Characters here are more cookie-cutter than usual, with an old maid, innocent soldiers, and an obsessive leader.
Implausibility continues as various victims do not run from the Haemovores who slowly approach in zombie-like manner. In fact, it is so zombie-like, there is a direct allusion to "Night of the Living Dead" when they are trapped in a building.
Included here is an obvious plotline of her meeting her mother while she was still a baby.
I wanted to like this more than I do, and my overall love for the series is probably why I give it as high marks as I have. However, had I skipped it, I think I would not have minded.