Gone Girl

Gone Girl is the fifteenth episode of the Fifth Season and the hundred and fourth episode of The Vampire Diaries (TV Series).

Summary
FLASHBACKS TO NADIA’S SEARCH FOR KATHERINE — While Nadia remembers her centuries-long search for her mother,, and  come up with a desperate new plan to save ’s life. For the second time, and  must turn to Liv for help. baits into a nasty confrontation, then takes off to seek revenge on Dr. Wes. Caroline and Tyler come to a new understanding. Finally, Bonnie learns of a terrifying secret that will threaten the lives of all her friends.

Main Cast

 * Nina Dobrev as Katherine Pierce
 * Paul Wesley as Stefan Salvatore
 * Ian Somerhalder as Damon Salvatore
 * Steven R. McQueen as Jeremy Gilbert
 * Kat Graham as Bonnie Bennett
 * Candice Accola as Caroline Forbes
 * Zach Roerig as Matt Donovan
 * Michael Trevino as Tyler Lockwood

Recurring Cast

 * Olga Fonda as Nadia Petrova
 * Rick Cosnett as Wes Maxfield
 * Penelope Mitchell as Liv Parker

Guest Cast

 * Ashlyn Jade Lopez as Young Nadia

Trivia

 * According to imdb, Young Nadia will appear in this episode.
 * The title Gone Girl may refer to Elena Gilbert being gone.
 * It is possible that Katherine taking over Elena's body has been discovered.
 * It's possible based on the synopsis that Bonnie and Jeremy may enlist Liv Parker's help in bringing back Elena.
 * Based on a TV Guide interview Damon may still be a ripper in this episode and Caroline may help Damon find out more about the Ripper serum.

Continuity

 * This is the first time in the series that Tyler is featured in the 15th episode of a season. It's also the first time since the second season that Tyler's character has not left town for an extended period, during the 13th and 14th episodes.
 * This is the third consecutive episode not to feature Elena Gilbert since her last appearance The Devil Inside.
 * Season 5 might mark the first time ever that Katerina will have appeared in more episodes than Elena.

Cultural References

 * Gone Girl is the name of a 2012 novel by author Gillian Flynn which has been made into a film due for release in 2014.
 * Gone Girl is also the name of a 1978 album by American singer Johnny Cash.
 * Gone Girl is the title of a song by the following artists - Payton Rae, Mud Acres, Jennifer Delano, Jack Clement, Tompall Glasser, jack Jersey, Billy Joe Trio, The Brothers Glaser, The Pet Band, Maurice Davis, Hans Theessink, Erin Sax, Zachart Cale, Atrey, Golab & The Renegades, Tracstarz, David Ferguson and Boundry Road. These cover a variety of genres and stlyes.