Nina Dobrev and Rick Cosnett

Looks like Elena (Nina Dobrev) is the latest test subject for Dr. Wes (Rick Cosnett) in his quest to wipe out all ­vampires on The Vampire Diaries. Will boyfriend, Damon (Ian Somerhalder), find her in time to stop the mad scientist?

"This episode is beautifully haunting," says Somerhalder of the CW drama's tense and twisty Dec. 12 midseason finale.

(Full disclosure: TVGuide.com is owned by CBS, one of The CW's parent companies.)

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