Better the Devil You Know

 is the seventeenth episode of the seventh season of The Vampire Diaries and the one hundred and fiftieth episode of the series.

Summary
DOWN THE BLOCK – While trying to discover what Mayleen and Shing are further up to, Elena struggles with Damon’s experiences in the Phoenix Stone. Bonnie tries to help her, but it proves to be more difficult. Caroline and Stefan’s relationship reaches a difficult turning point. At the same time, there needs to be studied for their final exam. Meanwhile, one by one, people are succumbing to demonic designs.

Main Cast

 * Nina Dobrev as Elena Gilbert
 * Paul Wesley as Stefan Salvatore
 * Ian Somerhalder as Damon Salvatore
 * Kat Graham as Bonnie Bennett
 * Candice Accola as Caroline Forbes
 * Zach Roerig as Matt Donovan
 * Matt Davis as Alaric Saltzman
 * Michael Malarkey as Lorenzo
 * Hunter Parrish as Andrew Montez

Recurring Cast

 * Elizabeth Blackmore as Valerie
 * Scarlett Byrne as Nora
 * Teressa Liane as Mary-Louise
 * Luke Benward as William Duncan
 * Leslie-Anne Huff as Rayna Cruz

Cultural References

 * Better the Devil You Know is a song by Australian singer-songwriter Kylie Minogue, taken from her third studio album Rhythm of Love (1990). The song was written and produced by Stock Aitken Waterman. The song was released as the album's lead single on 30 April 1990 by PWL and Mushroom Records. "Better the Devil You Know" is known as the song that re-invented Minogue with more sex appeal, as her previous albums were presented with her "girl next door" persona, while her music onwards present an independent approach.