He's sitting there... menacingly!

Prerequisites: None needed

The Sitter is easily the strongest story in the boxset so far. I'm still not a huge fan of the whole 'The Master is telling stories' structure, but this particular story is great. It's actually creepy, features some great performances, and is quite well paced. Plus, the ending is super good; really, this is back to the normal level of quality of what I'd expect from this range.