ST:TNG, Attached, Episode 708

I remember seeing a teaser trailer commercial on TV for this one, where they spoiled the entire episode where Dr. Crusher tells Picard, "You're in love with me." For some reason, I never got a chance to see the episode until now. An despite the bizarre subterfuge / "the Federation is holier than thou" side plots, the concept of being forced to share thoughts with another person remained a compelling plot point. Picard is forced to reveal his feelings towards Crusher as a result of being joined at the head by a strange and unexplained thought transceiver.

I like this concept for a lot of reasons. Mostly, because if such a thing were to exist, I would find it infinitely entertaining to experience the foreign landscape of other peoples' mind, and also to watch them reel and writhe at mine.