Vampire Diaries season 3 Episode 16

The present-day murders in Mystic Falls remind Damon of a similar crime spree a century earlier. In flashbacks to 1912, Damon recalls a beautiful vampire, named Sage (Cassidy Freeman), who showed him a whole new way to exist. Sheriff Forbes warns Damon not to get involved in her investigation of the murders, but Damon is convinced she's going after the wrong suspect Alaric. Meanwhile, Elena and Matt resort to breaking and entering in their search for evidence to prove Meredith is the killer they find a hidden door in her closet with a Gilbert journal that belonged to the original Jonathan Gilbert's granddaughter. For reasons known only to her, Rebekah becomes interested in locating one of the town's oldest landmarks that involve information Stefan and Damon might have on what happened to it or where it is. Finally, Elena comes to a new understanding of the path her life has taken, and Damon makes an emotional confession to Stefan after forcing him to drink fresh human blood and Elena seeing him with blood all over his mouth and Damon feeding a pretty girl his blood. The episode ends with Meredith at Elena's house explaining to Alaric that he is the killer because of his Gilbert ring that lets him cheat at death as the same thing happened to the granddaughter of Jonathan Gilbert in 1912.