Read the description of the chillingly-titled The Vampire Diaries episode “The Killer,” in which Connor will make a dangerous move against the vampires.

Are you still reeling from last night’s episode of The Vampire Diaries? Get a sneak peek at what’s coming up in the next few weeks by reading the summary of the fifth episode of the season, released by The CW:

THE HUNTER’S MARK — Stefan (Paul Wesley) and Klaus (Joseph Morgan) form an uneasy alliance to try and contain the danger that Connor (guest star Todd Williams) has unleashed on the town. When Connor takes Jeremy (Steven R. McQueen), Matt (Zach Roerig) and April (guest star Grace Phipps) hostage at the Grill, Stefan and Damon (Ian Somerhalder) have a serious disagreement about the best course of action, and Elena (Nina Dobrev) is again caught between the two brothers. The situation quickly turns violent when Klaus sends one of his hybrids, Dean (guest star Blake Hood, “The Young and the Restless”) to stand up to Connor. Caroline (Candice Accola) is surprised to find Hayley (guest star Phoebe Tonkin) at the Lockwood mansion. Meanwhile, Professor Shane (guest star David Alpay) works with Bonnie (Kat Graham) to help her get past her fear and guilt.

It’ll be interesting to see Stefan and Klaus team up again! We’re also looking forward to meeting new character April, and to see her interact with both Jeremy and Matt while taken hostage – somehow we doubt she’s going to leave the experience without discovering feelings for at least one of them!

And what about Phoebe Tonkin’s Hayley? Looks like the new werewolf’s presence will be irking Caroline, and maybe disrupt the relatively safe relationship she’s had with Tyler. And speaking of relationships: Bonnie and Professor Shane?!

The big questions remains, however: who is the killer the title is referring to? Is it Connor? Klaus? Stefan? Elena? Bonnie? We can’t wait to find out!

This episode will air on November 8, at 8/7c on The CW.