Bill and Sookie, "True Blood"
In the very first episode of "True Blood," we learn that the good folks of Bon Temps, La., will tolerate vampires (so long as there's a plentiful supply of synthetic Tru Blood around to feed them), yet they remain uneasy about the telepathic capabilities of waitress Sookie Stackhouse, who can't help but read their thoughts. Sookie and the 167-year-old vampire Bill (who doesn't look a day over 25) become fast allies when she saves him from two lowlifes who plan to drain his blood and sell it on the black market, where it is valued for its narcotic effect [source: HBO.com].
And that's the believable part. But through every season's twists and turns, just when we find ourselves scratching our heads at Sookie's loyalty and attraction to Bill, he'll find a way to redeem himself, at least temporarily. We can't pretend to know where their story is headed, but this supernatural super couple (played by real-life married couple Stephen Moyer and Anna Paquin) will be fun to watch along the way.