This episode shares it's title with a song by Australian rockers INXS.
Jeremy's birthday is October 13.
The PIN code on Elena's phone was 0622, her birthday.
Devil Inside is the title of a song by INXS. This song was also covered by London Grammar, which was also featured in The Originals Season Two episode Chasing the Devil's Tail. It is interesting to note that both episodes have the word "devil" in the title.
Stefan told Caroline he'd like her to help get Damon and Elena back together. She found it hard to believe it's what he'd want: "Elena and Damon, or Damon and Elena, or I know that there's a nickname in there somewhere," she said, referencing Delena.