The Vampire Diaries concluded "The Five" with a major reveal: Connor is working with Bonnie's new mentor, Dr. Shane.

Moreover, Connor doesn't know much about his past or why he was brought in to Mystic Falls. When might both the character and the audience learn more about this character?

On tomorrow night's "The Killer."

Telling Entertainment Weekly that plenty of "internal torture" is on the way for Connor, Todd Williams told the magazine this week that the episode will shed "some light as to why Connor’s doing what he’s doing," adding:

"It’s not as black and white as, Oh, vampires. I want to kill ‘em. That’s it. There’s definitely a story there, and this episode makes him a little more three-dimensional, just in terms of his humanity. You find out more about his relationship with Professor Shane and exactly what they’re trying to get from one another, why they have this alliance."

Color us intrigued.

Read more from Williams and EW now and then watch the official CW preview for "The Killer."