Human Nature and The Family of Blood are among the finest episodes in all of Doctor Who. The acting in both episodes is flawless, Charles Palmer's directing is phenomenal, and the script is equally as impressive. I'm going to try and keep this as detail-free as possible, but all I'm going to say is that this is one of the deepest, most emotional, and most perfect stories that this show has put out. From beginning to end there are no flaws, no nitpicks, and no complaints. The first half of the episode is emotionally stunning, while the second is dark and offers a beautiful resolution to a beautiful story and another side of the Doctor that we rarely see. Murray Gold's music fits every scene seamlessly and really adds to the emotion of the story too.
10 out of 10.
10 out of 10.