I Know What You Did Last Summer: Season 1 (2021)


Season 1
I Know What You Did Last Summer

Critics Consensus

A bloodless slasher that fails to congeal, I Know What You Did Last Summer hacks at its killer cast with plot holes and unsatisfying twists.

44%

TOMATOMETER

Critic Ratings: 34

37%

Audience Score

User Ratings: 41

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Episodes

Air date: Oct 15, 2021

Lennon Grant returns home after her first year at college and discovers that someone knows the terrible secret she and her friends swore to keep last summer.

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Air date: Oct 15, 2021

The estranged friends reunite to try and figure who might have revealed their secret or who else knows what they did.

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Air date: Oct 15, 2021

Unable to go to the authorities without revealing their secret, the crew needs to solve the mystery on their own; more bodies turn up as they realize they're being haunted and hunted.

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Air date: Oct 15, 2021

Lennon uncovers secrets about her twin and begins to fear the worst about the true identity of the person murdering her friends; more murders shock the local community.

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Air date: Oct 22, 2021

The police question everyone in town with any connection to the victims; the crew thinks they know who is after them and hunts for evidence implicating the town eccentric.

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Air date: Oct 29, 2021

Teenagers are stalked by a mysterious killer a year after a fatal accident on the night of their graduation.

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Air date: Nov 5, 2021

Teenagers are stalked by a mysterious killer a year after a fatal accident on the night of their graduation.

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Air date: Nov 12, 2021

Teenagers are stalked by a mysterious killer a year after a fatal accident on the night of their graduation.

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I Know What You Did Last Summer: Season 1 Videos

I Know What You Did Last Summer: Season 1 Photos

Tv Season Info

Cast & Crew

Madison Iseman
Lennon

Actor
Brianne Tju
Margot

Actor
Ezekiel Goodman
Dylan

Actor
Ashley Moore
Riley

Actor
Sebastian Amoruso
Johnny

Actor
Fiona Rene
Lyla

Actor
Cassie Beck
Courtney

Actor
Brooke Bloom
Clara

Actor
Bill Heck
Bruce

Actor
Sara Goodman
Executive Producer
Shay Hatten
Executive Producer
Neal H. Moritz
Executive Producer
Pavun Shetty
Executive Producer
Erik Feig
Executive Producer
James Wan
Executive Producer
Michael Clear
Executive Producer
Rob Hackett
Executive Producer
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Critic Reviews for I Know What You Did Last Summer: Season 1

Audience Reviews for I Know What You Did Last Summer: Season 1

  • 6h ago
    This is the dumbest show I've watched in a long time. I was waiting and waiting for a reason to keep watching the second episode but I had to stop. Lol. It tries really to hard to be as edgy as euphoria but fails with the lackluster character development, over the top/non-believable drug use and weird sex scene. The plot is awful with too many "twist" that aren't believable for what the show is. It's a shame because it could've been a great show. It's just trying too hard.
  • 2d ago
    This is a poorly attend to do a Riverdale like show, even Riverdale season 1 was kinda watchable and, what's going on endorsing grooming in a tv show? Like wtf with the relationship of coach and johnny
  • 3d ago
    I was utterly disappointed. The plot is dull and predictable, and the characters lack the depth and appeal. Even if this was a teenager series, I would call it silly.
  • 4d ago
    Ok it's not THAT bad, c'mon!
  • 4d ago
    Really Good Series loving the suspense of not knowing who the killer is and character development there laying for these characters 👌
  • 5d ago
    Is this an Amazon production or something from Nickelodeon? I'm confused
  • 6d ago
    Fetch is NOT happening for this cast. Some gen z intern cast this thing with an instagram and no definition of chemistry. Take a note from On My Block, and look beyond casting the most elite teens in beverly hills.
  • Oct 17, 2021
    Do yourself a favor and watch the original movie instead of this. This is beyond awful. It's boring, full of bad acting, even worse script and dialogue, and obnoxious characters. Really, really bad.
  • Oct 17, 2021
    Not a tiny bit scary, and the characters are stupid and unlikeable. No wonder I've been waiting for them to die, but disappointed so far...
  • Oct 17, 2021
    This is bad. It's amazing this script was greenlit by any studio. A twin killing her twin and "acting" like it didn't happen. Bitch, either you a sociopath or you don't know twins or you don't know what a human life experience is like. This is so out of touch I don't even know where to begin. The horrible dialogue? The poor casting?... What a blemish this is on such a good book. This series is lacking any type of talent.

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