Of all the twists, turns and surprises on this week's installment of The Vampire Diaries, the final scene is what has many fans buzzing this morning:

Katherine. Wet. Naked. Free from the tomb... and promising to help Damon? Can she really be trusted?

As evidenced by the trailer for next Thursday's "The House Guest," that's the question with which our protagonists will wrestle. Expect Katherine to not make it easy by playing some serious mind games.

Elsewhere: Caroline takes to the stage, Alaric makes a confession to Jenna and Stefan and Bonnie try to find peace with Jonas and Luka...

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.