SQShowSquad
CalendarSign inJoin
I Know What You Did Last Summer
RELEASED·SERIES·EN

I Know What You Did Last Summer

Thu, Oct 14, 2021
  • Mystery
  • Drama
Series · Synopsis

Synopsis

In a sun-soaked Hawaiian town with a mysterious past, a group of friends is left with a dark secret after a tragic accident. One year later, a member of the group receives a threatening message, and the friends now know that someone intends to make them pay for last summer.

Trailer

Watch the trailer

Where to watch

Streaming on

  • Amazon Prime Video↗
  • Amazon Prime Video with Ads↗
Cast

Top of the call sheet

  • Madison Iseman
    Madison Iseman
    as Lennon / Alison
  • Bill Heck
    Bill Heck
    as Bruce
  • Brianne Tju
    Brianne Tju
    as Margot
  • Zeke Goodman
    Zeke Goodman
    as Dylan
  • Ashley Moore
    Ashley Moore
    as Riley
  • Fiona Rene
    Fiona Rene
    as Lyla
Related

If you’re into this…

  • The Better Sister
    The Better Sister
    2025 · series
  • Pretty Little Liars: Original Sin
    Pretty Little Liars: Original Sin
    2022 · series
  • The Purge
    The Purge
    2018 · series
  • Imperfect Women
    Imperfect Women
    2026 · series
  • 56 Days
    56 Days
    2026 · series
  • Dead Ringers
    Dead Ringers
    2023 · series
  • Fool Me Once
    Fool Me Once
    2024 · series
  • Why Didn't They Ask Evans?
    Why Didn't They Ask Evans?
    2022 · series
  • Sherlock & Daughter
    Sherlock & Daughter
    2025 · series
  • Missing You
    Missing You
    2025 · series
SQShowSquad
CalendarSign inJoin
Episodes

1 season · 8 episodes

Ended · 8 aired
Season 1
8 episodes · 8 aired
▾
  • E1
    It's Thursday
    Aired · Fri, Oct 15, 2021 · 50m

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

  • E2
    It's Not Just For Dog Shit
    Aired · Fri, Oct 15, 2021 · 49m

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

  • E3
    A Gorilla Head Will Not Do
    Aired · Fri, Oct 15, 2021 · 46m

    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.

  • E4
    Hot Shrimp Salad
    Aired · Fri, Oct 15, 2021 · 46m

    Lennon uncovers secrets about her twin and begins to fear the worst about the true identity of the person murdering her friends. The local community is shocked by more murders.

  • E5
    Mukbang
    Aired · Fri, Oct 22, 2021 · 44m

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

  • E6
    Least You Had A Spare
    Aired · Fri, Oct 29, 2021 · 44m

    More devastating truths are unearthed by Lennon as the crew frantically search for one of their own who has gone missing.

  • E7
    If Only Dogs Could Talk
    Aired · Fri, Nov 5, 2021 · 48m

    The town races to find the killer before another victim is claimed. Calm seems to be restored as the killing stops until the police make a gruesome discovery.

  • E8
    Your Next Life Could Be So Much Happier
    Aired · Fri, Nov 12, 2021 · 58m

    Lennon and her surviving friends confront painful truths from the past as the shocking truth of the killer's identity is finally revealed – with deadly consequences.