‘I Know What You Did Last Summer’ Is a Murder Mystery with Major Horror Aspects!

'I know what you did Last Summer’ 2021

Hello Readers… I hope you all are well….

Let’s take a look at the American Teen Horror television series(I Know What You Did Last Summer 2021).

Who doesn’t love binge watch television shows? Especially, when it’s a teen horror show. The show doesn’t really consist of ghosts or supernatural beings but the psycho killers are crazy enough to be scared of!

Recently, another series called I KNOW WHAT YOU DID LAST SUMMER was released by Amazon Prime and is great teen horror to watch. If anyone likes murder mysteries with horror aspects, this series is for you!

Scroll down to check out what is all about the show “I Know What You Did Last Summer 2021” 

  • I Know What You Did Last Summer is an American teen horror television series.
  • It is based on the 1973 novel of the same name by Lois Duncan
  • Amazon Studios announced the series’s development in 2019, with Neal H. Moritz and James Wan served as executive producers. 
  • It was given a straight-to-series order in October 2020.
  • Filming took place in Oahu and began in January 2021.
  • It premiered on Amazon Prime Video on October 15, 2021, with the first four episodes and the rest debuting on a weekly basis.

Plotline : ‘I Know What You Did Last Summer’ 2021

'I know what you did Last Summer’ 2021

On the night of their high school graduation, Julie James, Helen Shivers, Barry Cox and Ray Bronson left town to celebrate. As they returned to Barry’s new car, they struck a man and he died. Terrified, they all began to think about what to do. They called Julie’s friend Max Neurick. When he arrives, Julie tells him that everything is fine so he leaves. After much thought, they decided to throw the corpse into the sea and never talk about it again in their lives.

Just a year later, when Julie returned from college, she received a copy of the book, I KNOW WHAT YOU WERE DOING LAST SUMMER! Julie had lost contact with Helen, Ray and Barry. You have decided to meet them all. When they meet to discuss the incident, Barry blames Max. After that they decide to meet him but Barry asks to meet him alone.

When Barry meets Max, he threatens to shut up about killing the man. Max was killed by a hook in the factory and Barry was injured. The killer is unknown. After learning of the incident, Julie revealed that the person they had named was David Egan. They tracked down her sister, Missy, where she now lives.

At Helen’s house that night, she receives death threats from the killer. Along the way, Julie hears a rumble in her throat. He opens the trunk to find Max’s body But when he gets Harry there, the body is gone. Later, they met Ray, who told them that he had received the letter. Julie tries to convince Missy that David did not commit suicide after Missy gave him a suicide note written in the same way as a letter to the killer. Missy tells Julie to leave.

After many scenes and research, Julie discovers that the killer is Ben Willis, a fisherman. He killed David Egan after he and Ben’s daughter were involved in a car accident in which four teenagers beat Ben.Susie to death in an accident and David was not injured. Ben blames David for killing him a year later, making it look like suicide. On the way home, Ben was hit by a group.

A year later, Julie is in her second year and is taking a trip to New York with Ray. He finds a letter similar to the one he received from Ben, but only with the invitation to the pool party. Julie returns to the bathroom, which is filled with smoke. At the shower door, it says “I KNOW”. Ben jumps at the shower door, attacking her.

Cast & Crew Members of ‘I Know What You Did Last Summer’ 2021

'I know what you did Last Summer’ 2021


  • Madison Iseman as Lennon/Alison
  • Brianne Tju as Margot
  • Ezekiel Goodman as Dylan
  • Ashley Moore as Riley
  • Sebastian Amoruso as Johnny
  • Fiona Rene as Lyla
  • Cassie Beck as Courtney
  • Brooke Bloom as Clara
  • Bill Heck as Bruce


  • Sonya Balmores
  • Spencer Sutherland
  • Chrissie Fit

Episode List/ ‘I Know What You Did Last Summer’ 2021

No. Title Directed by Written by Original release date
1 “It’s Thursday” Craig William Macneill Story by : Shay Hatten & Sara Goodman

Teleplay by : Sara Goodman and Shay Hatten

October 15, 2021
2 “It’s Not Just For Dogshit” TBA Sara Goodman October 15, 2021
3 “A Gorilla Head Will Not Do” TBA Johanna Stokes October 15, 2021
4 “Hot Shrimp Salad” TBA Phoebe Fisher October 15, 2021
5 “Mukbang” TBA Gary Tieche October 22, 2021
6 “Least You Had A Spare” TBA Lana Cho October 29, 2021
7 “If Only Dogs Could Talk” TBA Chaconne Martin-Berkowicz November 5, 2021
8 “Your Next Life Could Be So Much Happier” TBA Sara Goodman November 12, 2021

Trailer : ‘I Know What You Did Last Summer’ 2021

Here I have given the trailer of ‘I know what you did Last Summer’. Just click on the video and enjoy it.

Ratings :  ‘I Know What You Did Last Summer’ 2021

The ratings of  ‘I know what you did Last Summer’ 2021 is given below.

  • It got an imdb rating of 6.3 out of 10.
  • It got 70% out of 100% from Rotten Tomatoes.

Frequently Asked Questions Related to ‘I Know What You Did Last Summer’

'I know what you did Last Summer’ 2021

Is There a Remake of I Know What You Did Last Summer?

Amazon’s ‘I Know What You Can Do Last Summer’ Exciting Remake Drops Trailer. … “If it weren’t for me, it would have been someone else,” warns the voiceover of Madison Iseman’s star, as the trailer shines through moments of youth negligence, graduation parties and unrequited romantic involvement.

Do You Know What You Did Last Summer on Netflix?

I Know What You Did Last Summer was the original Amazon Studios series, so it won’t be available on Netflix.

Who Was the Killer in I Still Know What You Did Last Summer?

Ben Willis : Julie discovers that the killer is Ben Willis, a fisherman. He killed David Egan after David and Ben’s daughter Susan Willis were involved in a car accident near where the four boys hit Ben. Susie died in the accident and David was not injured.

Last Lines

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Hi! I am Akshi, a content writer. I have been writing for more than five years now and love every minute of it. As a content writer, my work has seen me publish over 3200 articles on various topics in the past few years. I'm passionate about creativity, innovation and technology- all three things I try to include when crafting my articles. You can find my portfolio at mangumstarnews.net


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