Watch The Vampire Diaries S04E05 - The Killer Full Episode. Previewed in full! Stefan (Paul Wesley) and Klaus (Joseph Morgan) form an uneasy alliance to try and contain the danger that Connor (guest star Todd Williams) has unleashed on the town. When Connor takes Jeremy (Steven R. McQueen), Matt (Zach Roerig) and April (guest star Grace Phipps) hostage at the Grill, Stefan and Damon (Ian Somerhalder) have a serious disagreement about the best course of action, and Elena (Nina Dobrev) is again caught between the two brothers. The situation quickly turns violent when Klaus sends one of his hybrids, Dean (guest star Blake Hood, "The Young and the Restless") to stand up to Connor. Caroline (Candice Accola) is surprised to find Hayley (guest star Phoebe Tonkin) at the Lockwood mansion. Meanwhile, Professor Shane (guest star David Alpay) works with Bonnie (Kat Graham) to help her get past her fear and guilt. Prev: 4x04 -- The Five (Nov/01/2012) reviewed! 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 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. Watch The Vampire Diaries S04E05 - The Killer Full Episode below. Enjoy watching and have a great day! DON'T COPY THIS ARTICLES!!! WE DON'T DISTURB YOU AND WE RESPECT YOURS WORK!!!