Vampire Diaries 4x04 Official Synopsis
“A FRAT PARTY AND A FLASHBACK TO 12TH CENTURY ITALY — Damon goes with Elena and Bonnie to visit Whitmore College, where Professor Shane is taking over the Occult Studies classes formerly taught by Bonnie’s grandmother. At a fraternity costume party, Damon takes advantage of the wild scene to give Elena a lesson in choosing a victim. Rebekah’s attempt to buy Matt’s forgiveness falls flat, but she is intrigued by unexpected news from Klaus. When Stefan questions Klaus about Connor’s (guest star Todd Williams) motives, Klaus reveals a long-ago encounter with a powerful group of vampire hunters, but it’s Rebekah who delivers the information that stuns Stefan.”
The episode was written by Brett Matthews and Rebecca Sonnenshine and directed by Joshua Butler.