The Vampire Diaries Wiki

I Know What You Did Last Summer

2,052pages on
this wiki
The Vampire Diaries
Season 5, Episode 1
6 tvd6 640
Air date October 3, 2013
Written by Caroline Dries
Directed by Lance Anderson
Episode Guide Transcript
True Lies

I Know What You Did Last Summer is the first episode of the fifth season of The Vampire Diaries and the ninetieth episode of the series.


The Vampire Diaries - Season 5 Premiere Promo00:31

The Vampire Diaries - Season 5 Premiere Promo


COLLEGE DAYS — After spending the summer enjoying her passionate relationship with Damon, and making sure that Jeremy is adjusting after his return from the dead, Elena is thrilled to move into the dorm at nearby Whitmore College with her new roommate, Caroline. Still believing that Bonnie has been traveling all summer and will soon join them, Elena and Caroline are surprised when a student named Megan shows up and announces that she will be sharing their dorm room. Katherine makes an unexpected appearance at the Salvatore house and pleads with Damon to help her now that she is human and vulnerable to her enemies. Matt and Rebekah return to Mystic Falls after spending a wild summer in Europe, where they met a mysterious beauty named Nadia. Elena can’t shake the feeling that something is wrong with Stefan, and Silas makes a terrifying appearance at the “End of Summer” party in the town square.



Main Cast

Guest Cast



  • Antagonists: Silas, Nadia, Enzo (unseen) and Gregor.
  • This is the first episode of the first chapter of Season Five, The Doppelgängers Chapter.
  • This episode marks the first appearances of Nadia, GregorJesse, Dianne and Megan.
  • Elena and Caroline meet Jesse in this episode.
  • Whitmore College is revealed to be a few hours away from Mystic Falls.
  • Rebekah and Matt were sending postcards from their European trip.
  • Bonnie tells Jeremy that she doesn't want to ruin Elena's happiness by revealing that she died.
  • Whitmore House is seen for the first time in this episode.
  • Caroline and Elena can't enter Whitmore House because they haven't been invited in by the owner (Aaron Whitmore).
  • Katherine and Silas meet for the very first time.
  • This episode featured the first same-sex kiss (Rebekah and Nadia).
  • Matt has his first threesome in the series in this episode with Rebekah and Nadia, while this is Rebekah's second threesome in the series. Rebekah's first was with Damon and Sage in Break On Through.
  • Silas reveals to Damon that Stefan is "suffering" just as he had for 2,000 years.
  • Although Silas is immortal, he lacks some abilities that vampires have, such as super-speed and increased physical strength.
  • Silas proves he has no fangs as he claims he is immortal, but not a vampire.
  • Silas dislikes vampires. He deems them to be "disgusting perversions" of a true immortal like him.
  • Damon offers Katherine his blood to turn her into a vampire again, but she declines his offer. She fears that if she dies with vampire blood in her system, she may end up actually dying as a human and not coming back a vampire due to the cure's side effects.
  • Elena learns that the recently killed Megan King knew her father, based on the photo on her phone.
  • The End of Summer party took place in this episode.
  • Silas uses his psychic powers to compel everyone in the Town Square to search for Katherine for him.

Body Count


Behind the Scenes

  • As of this season, Marguerite MacIntyre (Elizabeth Forbes) becomes the only non main character who is still alive to appear in every season of the series.
  • This episode had about 2.59 million viewers in USA. 

Cultural References

  • I Know What You Did Last Summer is the name of a 1997 horror movie starring Jennifer Love Hewitt, Sarah Michelle Gellar, Ryan Phillippe and Freddie Prinze Jr. The screenplay was written by Kevin Williamson. The screenplay was also based on the 1973 novel by the same name by Lois Duncan.
  • Supernatural (Season 4, Episode 9) also has a episode title with the same name.


Stefan (as Narrator) : "...but our greatest threat is still out there...and he"
Bonnie (as Narrator) : "If Katherine Pierce ingesting the only cure on this Earth and having to live as a Human isn't justice...I don't know what is."
Jeremy (to Bonnie) : "It's bad enough you're dead, now you're a control freak?"
Damon (to Elena) : "You're leaving! You're going to college, you're going to drink cheap beer and you're going to protest about things you don't care about."
Elena (to Caroline) : "To us...and college and being functional Vampires."
Jeremy (to Bonnie) : "I should get going. The freak who faked his own death, can't also be late for math."
Rebekah (to Matt) : "Five-star restaurants in Paris to tapping kegs in a park...tragic."
Rebekah (to Matt) : "Tell him we had a threesome, he'll understand."
Caroline (to Elena about Megan) : "She has an entire drawer dedicated to organic linen."
(Katherine is drinking Damon's alcohol)
Katherine: "You're gonna have to cut me off soon. My tolerance is a joke now. It's just so...glorious."
Damon: "You're miserable."
Katherine: "Please. I'm Katherine Pierce. I'm a survivor."
Damon: You're a liar. Your hair is messed up, your nails are chipped. You're a sad, miserable human being and you want me to turn you. So, here. (Damon bites his wrist and offers it to Katherine) Go ahead. Drink up. I'll kill you, you'll bite the mailman, and you'll be a vampire again. Go ahead. Come on."
Katherine: "I can't, okay? No one's ever taken the cure before. If I die, there's a good chance I may never wake up."
Damon: "And that would be tragic."
Katherine: "And deep down in that mushy, gushy Elena-loving heart, there's a part of you that doesn't want me to die."
Damon: "If I have to hear the word "doppelgänger" one more time, I think I'm gonna actually have to learn how to spell it."
Silas: "You say you don't believe me, and yet you're mind is spinning at the possibility."
Damon: "A, get out of my head; B, I think I'd know if my little brother had an evil twin."
Silas: "Oh, we're not twins. See, when I became truly immortal, nature retaliated by creating a version of me that was kill-able. It's called a shadow self."
Damon: "Well, whatever you are, your plan didn't work. The cure's gone. Now what do you want with Katherine?"
Silas: "I could tell you, but wouldn't be so much more fun if it were a surprise?"
Damon: "You're not getting her."
Silas: "Damon, how well do you know your brother? Do you really think he would leave town for three months without so much as a phone call so you could live happily ever after with the love of his life? Or did you just delude yourself into thinking it would be that easy?"
Damon: "Where's Stefan?"
Silas: "He's suffering, like I suffered. So, call the hunter, bring me Katherine, and then I will tell you where your little brother is."
Damon: "One day. One day where you don't screw it up."
Jeremy: "Leave me alone, Damon."
Damon: "You're lucky you didn't put one of those idiots in ICU."
Jeremy: "Says the guy that once killed me."
Damon: "Yes! In the privacy of your own home. Away from prying eyes. Unlike you, who went all hunter in the middle of the hallway. You got expelled, genius."
Jeremy: "Does that mean I don't have to go back to school?"
Damon: "I compelled Principal Webber into a very generous 3-day suspension. Elena does not need to know about this."



Last.fm_play.png "Unbelievers" – Vampire Weekend
Last.fm_play.png "Royals" – Lorde
Last.fm_play.png "Falling" – Amy Stroup
Last.fm_play.png "Pumpin Blood" – NONONO
Last.fm_play.png "Dreaming" – Smallpools

Last.fm_play.png "Destroy" – In-Flight Safety
Last.fm_play.png "Here We Go Again" – Johnny Stimson
Last.fm_play.png "Time" – The Fast Romantics
Last.fm_play.png "Run Away" – Cary Brothers




See also

Start a Discussion Discussions about I Know What You Did Last Summer

  • Damon and Elena

    2 messages
    • Damon and Elena are perfect together.Don't you remember when Elena and Damon went to get Jeremy in Colorado, and the dead Rose told Jeremy t...
    • I agree. is like Damon was locked up and tortured for 5 years and he never once bitched about it. You can say but he turned off his emotions......
  • Damon ...

    6 messages
    • Damon please leave Mystic Falls! Stelena please come back! Only with Stefan Elena is a good girl!
    • wrote: Damon please leave Mystic Falls! Stelena please come back! Only with Stefan Elena is a good girl! I highly doubt Damon...

Around Wikia's network

Random Wiki