Goodreads helps you keep track of books you want to read.
Start by marking “I Know What You Did Last Summer” as Want to Read:
I Know What You Did Last Summer
Enlarge cover
Rate this book
Clear rating
Open Preview

I Know What You Did Last Summer

3.49  ·  Rating details ·  11,790 ratings  ·  1,078 reviews
Last summer, four terrified friends made a desperate pact to conceal a shocking secret. But now, someone has learned the truth and is determined to get even.

The horror is starting again. There is an unknown avenger out there who is stalking them in a deadly game. Will he stop at terror-or is he out for revenge?
Paperback, 208 pages
Published April 6th 1999 by Laurel Leaf (first published 1973)
More Details... Edit Details

Friend Reviews

To see what your friends thought of this book, please sign up.

Reader Q&A

To ask other readers questions about I Know What You Did Last Summer, please sign up.
Popular Answered Questions
Abrish Malik I read this in 5th grade and thoroughly enjoyed it. It depends how mature the 5th grader is.

Community Reviews

Showing 1-30
Average rating 3.49  · 
Rating details
 ·  11,790 ratings  ·  1,078 reviews

More filters
Sort order
Start your review of I Know What You Did Last Summer
Joe Valdez
Jul 09, 2016 rated it really liked it  ·  review of another edition
Shelves: mystery-suspense
Before it was a '90s slasher movie, I Know What You Did Last Summer was actually a novel by Lois Duncan and believe it or not, a very good one. Published in 1973 and revised by the author in 2010, I had superficial issues with her decision to rebrand everything from fashion to geopolitics to telephones for the Young Adult reader of today--a decision that felt financial as opposed to creative--but where it matters, the book generates a terrific amount of suspense and delivers a satisfying payoff ...more
Kelly (and the Book Boar)
Find all of my reviews at:

3.5 Stars

Welcome to . . . .

I decided to take a break from my usual selections . . . .

And read listen to this oldie-but-goodie to celebrate my favorite time of year . . .

(Spoiler Alert: He’s really going to murder her for being a basic white bitch.)

After having a pretty meh time with Killing Mr. Griffin during Banned Book Week, I set my expectations super low before starting this one. Imagine my delight when I ended up re
Dec 27, 2016 rated it really liked it  ·  review of another edition
Recommends it for: Fans of YA Mysteries, Fans of Lois Duncan.
“Girls like her are a dime a dozen, and I happen to have a pocket full of dimes.”
― Lois Duncan, I Know What You Did Last Summer

One is never to old to read the classic mystery "I know what you did last summer" which was also a movie (not a very good one) and spawned many a copy c at book with a similiar premise.

I first read this as a kid. I am a huge fan of Louis Duncan's work and this was one of her best novels. The premise is simple. A group of 4 teenagers, out late one night, partying it up,
Darth J
Okay guys, I read this book when I was in fourth grade (when the movie came out) so my recollection will be a little bit foggy. Just go with me on this, okay? (view spoiler)

So the plot of this story centers on Julie James (view spoiler)
Oct 11, 2019 rated it really liked it  ·  review of another edition
It wasn’t until recently that I found out that one of my favourite movies of the late 90’s was actually based on a book, but what is more surprising is how different they both feel.

I’d not realised that I was in fact reading an updated version of the story, with talk of cell phones and CDs it felt very much of that time period. It wasn’t until mentions of the Iraq war that I’d finally realised that changes had been made! Oops...

This book is clearly being aimed at people like me who have come to
Christian Guzman
I read this novel in one sitting. It wasn’t the most enjoyable book I have read, but it wasn’t unexciting either. I would have probably enjoyed this novel way more if I had read it when I was about 13 years old. The concept and plot of the book grabbed my attention which is why I decided to read it. Also, the length of the book was ideal, just in case if I didn’t enjoy it I wouldn’t have wasted too much time on it. It was quite entertaining, but it lacked suspense for me. At first I found it to ...more
 Readaholic Jenn
Dec 01, 2016 rated it it was amazing
Shelves: favorites, own
An amazing book. It holds your attention from start to finish. I highly recommend it to everyone.
Diego Sanchez
Jul 24, 2017 rated it liked it
Shelves: movie-books
3.5 stars

As plenty of you, I know this movie since I think it is one of the most representatives from the 90's and one of my favorites may I say, since it has an iconic cast and I found it fun and suspenseful as well. Sadly, if you are looking to see the movie turning into a book you will be wrong (As me) and here are my thoughts:

*Plot/Development: This book tells us the story of four teenagers who are involved in an accident, that ends up wrong since it turns for them to kill someone. Months l
Sep 12, 2019 rated it liked it
I remember when this movie came out and I was like, “I swear I read a book with this title years ago.” And I had, as it turns out. By the late, great spooky mystery lite YA author, Lois Duncan. But this wasn’t just a book I had read this one time; we read excerpts from many of Duncan’s books to each other at slumber parties (with lights out and flashlights under our chins, you know, that whole deal.)

Flash forward to now: and no one has told me a ghost story involving a Lover’s Lane hook hand ki
Misty's Book Space
2.5 Stars

I came across this book sometime last year at a library book sale. I didn't know this was a book. I watched the movie a long time ago and I've watched it several times since then. When I saw this at my local library I decided to get it because I actually really liked the movie and I assumed I would enjoy the book just as much if not more. Unfortunately that wasn't the case for this book.

As I mentioned above I watched the movie long before I ever read the book so its possible that if I h
PinkAmy loves books, cats and naps
Holy dated book, Batman.

I grew up on Lois Duncan, the go to YA thriller writer in the 1970s. I might have even given I KNOW WHAT YOU DID LAST SUMMER five stars back then. Technology makes many books of my generation either period pieces or irrelevant. Teens today have never had to search for a dime for a payphone, what having an unlisted phone number means or not knowing who’s calling when you answer the phone.

Some editor had a not-so-brilliant idea to update I KNOW WHAT YOU DID LAST SUMMER by t
Aug 07, 2009 rated it it was ok

Hopefully you didn't just read that. For those of you who were smart enough to skip that spoiler you can now read in confidence knowing that you will not be told that the book was made into a movie. You will live in happy naivety thinking that the book is a self-contained form of media in which this narrative lives. Unfortunately, you will be wrong.

Since I have neither read the book, nor seen the movie. I can safely
Erin *Proud Book Hoarder*
I've found that I love Lois Duncan's writing style, her stories, and her hidden layers, but this one fell a bit short. It's ironic since out of the stories I've read of hers, this is inferior, but it's the most popular because of the movie.

The film, by the way, is much different. We don't get a hand hook killer tracking down the teenagers. Here it's a mini mystery. The ending is rather simple and cheesy. Backstory is depressing, you feel for the victim and the consequences. I liked the main char
Claude's Bookzone
Jul 22, 2020 rated it it was ok
I really wish there had been a lot more tension in this story. It's quite a short book so there was definitely room to add some more scary scenes. I feel like the movie may have been an improvement on the original idea, which is actually a really good one, but given it scored 5.7 on IMDB that's not saying a lot. Great premise, underwhelming delivery. ...more
Fiona MacDonald
As such a big fan of the film when I was younger, I was embarassed to find out that there was a book that had slipped by my radar.
When I started, initially it appeared quite similar, but soon after I realised it was utterly different. Added to which, the book itself was written in the 70s and set around that time, making the 1997 movie completely out of range. The characters have more depth, but equally are nothing like they are portrayed in the film. The deaths are different, everything is diff

This is geared more towards middle-schooled age kids and for what it's worth it pulls that off wonderfully. I basically listened to this for Halloween Bingo 2020 and fulfilled the Fear Street Square with it. It was a quick listen and it was interesting to see how it differed from
Rachel (TheShadesofOrange)
2.0 Stars
I really disliked this classic young adult novel. The plot was predictable and the characters were incredibly annoying. Apparently, teenagers are more concerned with “who likes who” rather than figuring out who is trying to kill them.
Four kids drive home after a high-school-party, everyone - including the driver - a bit intoxicated and tipsy. Then happens what always happens in such situations: an accident on a dark road. They knocked over a young boy, riding with his bicycle. For fear of the police they don't administer first aid but instead do a hit-and-run.

One year later - they've almost forgotten the incident - they're reminded of it via mysterious letters. Someone outside of their circle seems to know their dark secret.
Aug 23, 2019 rated it really liked it  ·  review of another edition
I remember a movie by the same title but I never saw it so I’m not sure if it was based on this book.

Four friends, Julie James, Barry Cox, Helen Rivers, and Ray Bronson. go out and drink and smoke pot and a tragic accident occurs. The whole story is based on the guilt (or not) that they live with.

One day one of the four gets a note that is indicative that someone MIGHT have witnessed the tragedy. There’s a lot of suspense surrounding the note and whether it’s a prank or not.

I think its origina
Dez Nemec
Aug 19, 2018 rated it really liked it
Shelves: horror, 2018
I didn't even know the movie was based on a book until the author died a couple years ago. While it is technically a YA novel, it doesn't read as one. What I mean is, the language isn't juvenile and it didn't want me to tear my hair out like the last YA I tried to read. It's a quick story, with solid characters. My main problem is having seen the movie multiple times, I couldn't help but see Buffy as Helen and Jennifer Love Huge-Tits as Julie. Otherwise, I actually really enjoyed this. A perfect ...more
Bethany Ainsworth
I got this book because of the movie that I never watched. It seemed interesting, but reading the book made me feel so bored, I was positive that I would've actually turned into a board. That's how boring this book is. ...more
Trigger warnings: death of a child, gun violence, blood, violence, mental health, romantic relationship between a high school girl and an "older boy" who's older enough that he's done a tour of Iraq (I'm assuming it was Vietnam in the original) and has been discharged.

I honestly can't remember if I read this book as a teenager, but I definitely saw the movie and it scared the pants off me. I rewatched the movie tonight after finishing the book, and this is one of the rare occasions where the mo
Vicky Lelove
Oct 24, 2020 rated it really liked it  ·  review of another edition
Predictable maybe even stereotypical but a truly good fun read and actually different from the 90s horror movie.
May 20, 2020 rated it really liked it  ·  review of another edition
Really enjoyed this.
Aug 18, 2019 rated it it was ok  ·  review of another edition
I used to love Lois Duncan’s books but this one All the MCs were like caricatures of soap opera characters, which was annoying af and I found myself not really rooting for any of them. And the misogyny...whew. It was too much. I know this book was originally written/published in the 70s, but Duncan didn’t change much with the reprint.

I also found the ending to be super abrupt. It made no sense.
Mar 14, 2011 rated it really liked it
I loved this guilty pleasure read. I thought it was different from the movie,but then again I couldn't really remember the movie. I think I was just in the mood for some mystery and silly suspense. ...more

Okay, so I actually finished this a couple of days ago and decided for the heck of it that I wanted to wait and write this review after I watched the 1997 movie since I never saw this growing up because of the rating but now that I'm older I could've watched it any time but had no desire to if I'm being honest here until I was browsing the shelves at my library and saw that this was apparently a book; and also Libby had the audiobook through my county
May 29, 2019 rated it liked it
Shelves: 2019, audiobook
It was weird reading this, having seen the movie years ago and now I'm comparing the book to it and it's kind of a let down. I wanted it to be much scarier and more intense, but it was kind of cheesy and didn't have hardly any lead up to meeting the person who wants revenge. This did come out 40 years ago, so the idea of what was considered scary was different, but I hoped for more. I think this version was updated though, because it talked about cell phones and I'm pretty sure people didn't car ...more
Aug 24, 2020 rated it did not like it  ·  review of another edition
There are A LOT of issues with this book that made me cringe, especially after finding out that Lois Duncan actually went in and updated some of the story, but didn’t update scenes that really could have used the updating.

Also. It’s boring. & all of the characters were horrible. I said what I said. 🤷‍♀️
Thomas Schneider
May 22, 2019 rated it liked it
This review has been hidden because it contains spoilers. To view it, click here.
« previous 1 3 4 5 6 7 8 9 next »
topics  posts  views  last activity   
Goodreads Librari...: I Know What You Did Last Summer COVER 6 17 Dec 27, 2019 04:17AM  
Hopeful Wanderers: I Know What You Did Last Summer 2 4 Nov 21, 2014 10:20PM  
goodreads 1 1 6 Apr 10, 2014 05:36AM  
Madison Mega-Mara...: I Know What You Did Last Summer by Lois Duncan 3 6 Jun 21, 2013 05:31AM  

Readers also enjoyed

  • I'll Be Seeing You
  • Prom Dress
  • Arizona (Beautiful Dead, #2)
  • Clown in a Cornfield
  • Video Palace: In Search of the Eyeless Man
  • Black Lightning
  • Silent Night 2 (Silent Night, #2: Fear Street Super Chiller, #5)
  • The Waitress
  • The Unleashed (The Haunted, #2)
  • Are You in the House Alone?
  • The Name of the Game Was Murder
  • Five Total Strangers
  • The Dark Deception (Daphne and Velma, #2)
  • Silent Night (Silent Night, #1: Fear Street Super Chillers, #2)
  • A Werewolf in Riverdale (Archie Horror, #1)
  • Chain Letter (Chain Letter, #1)
  • Green Arrow, Volume 1: The Midas Touch
  • Jonas (Beautiful Dead, #1)
See similar books…
Lois Duncan (born Lois Duncan Steinmetz) was an American writer and novelist, known primarily for her books for children and young adults, in particular (and some times controversially considering her young readership) crime thrillers. Duncan's parents were the noted magazine photographers Lois Steinmetz and Joseph Janney Steinmetz. She was born in Philadelphia, Pennsylvania, but grew up in Saraso ...more

Articles featuring this book

From The Hunger Games to The Fault in Our Stars, some of Hollywood's biggest movies began as beloved young adult novels....
109 likes · 51 comments
“aloud she said why not you ray you were involed in this as much as the resst of uswhy is it that bud never tried to do anything to you ?his armed tighted around her.'he knew the worst thing for me was a world without you” 13 likes
“she thought ray i'll never see ray again there was a time she looked into those green eyes and said i love you so long ago he'll never know i still do” 7 likes
More quotes…