Tyler learns more about the Lockwood family curse from Mason. Stefan and Damon argue over how to handle Mason. Elena tries to keep Jeremy from becoming more involved with the Lockwood mystery, but Jeremy makes an effort to hang out with Tyler. Mason gives Sheriff Lockwood some startling information, leading to a night of violence, confession and heartbreak.

Why do I even bother being surprised by The Vampire Diaries any more? The show has more tricks up its sleeve than any other series on TV, and this week‘s episode, "Kill or Be Killed," changed the game several times by revealing nearly every major secret, including a few we didn‘t know about.
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