For a series devoted to finding the truth, The X-Files mythology had more than its fair share of deceptive twists and turns over the course of twelve seasons. Early episodes were open-ended, meaning viewers had to wait for a resolution. It was confusing but in a good way.

Things got muddled as the seasons went by, perhaps because creator Chris Carter refused to keep an internal bible. And that meant that the mythology folded in on itself and the confusing nature of the show changed from the good kind to the bad.