Nina Dobrev gets her masquerade mask adjusted in this behind-the-scenes still from The Vampire Diaries.

In tonight’s episode “Masquerade,” The Lockwoods throw a masquerade ball, and Stefan (Paul Wesley) and Damon (Ian Somerhalder) try to prevent Katherine (Dobrev) from wrecking the party. Meanwhile, Matt (Zach Roerig) and Tyler (Michael Trevino) get into trouble when they start drinking shots with some friends.

“Masquerade” premieres TONIGHT, Thursday, October 28 @ 8PM ET/PT on the CW. 15+ pics inside…