Presenting: The First Vampire Diaries Webisode

As fans count down the days until the premiere of The Vampire Diaries, The CW is doing everything it can to build excitement over this series.

The network is releasing a series of Webisodes, the first of which is titled "A Darker Truth" and is meant to shed light on Stefan Salvatore's past. Why does the man in the video below think Stefan killed his sister?

Watch it now, let the mystery grow and then tune in on September 10 for the series premiere...