Undead To Me | You're

" You’re Undead to Me " is the fifth episode of the first season of , originally airing on October 8, 2009. The episode is a pivotal point in the series where Elena Gilbert first pieces together the clues that Stefan Salvatore is a vampire. Key Plot Features

: Stefan keeps Damon locked in the Salvatore basement, injecting him with vervain to keep him weak and intending to let him desiccate for 150 years. You're Undead to Me

: After meeting a stranger who remembers seeing Stefan in 1953, Elena researches old news footage and realizes he hasn't aged in over 50 years, leading to her confronting him at the end of the episode. " You’re Undead to Me " is the