30 Days Of Horror Challenge Day 26: Your Favorite X-Files Episode

We haven’t talked too specifically about shows in this months challenge though we’ve covered the TV side once or twice before. For this question, we want to look at one of the longer-running shows that delved into the horror side of TV storytelling more than most other shows out there that was arguably the most mainstream for the longest time. The X-Files played to a few different genres at times but while the whole alien mystery element is there, much of that and many episodes were wrapped up in horror and tension built around that. Not everything was explained, of course, and some things were shown to just be within the realm of reality, but it had a lot of unexplained horror it liked to play in as well. Which episode or storyline worked the best for you in this franchise for exploring the horror element?

Bonus Question: Which was your most hated episode?