Haunted


 * For the issue of the same name, see Haunted (issue).

"Your sister requires a restoration of her soul."

- John Constantine on how to make Sara better

"Haunted" is the fifth episode of the fourth season of Arrow and the seventy-fourth episode overall. It aired on November 4, 2015.

Synopsis
When things take a turn for the worse with Sara, Oliver calls in a favor from an old friend who deals in the mystical, John Constantine.

Production

 * Preparation ran from August 6 until August 14, 2015. Filming ran from August 17 until August 27, 2015.
 * Though the fifth episode of Season 4, it was the fourth episode produced.

Behind the scenes

 * On November 1, 2015, a rough cut of the episode was leaked on to the internet.