I Know What You Did Last Summer poster
Where to stream

I Know What You Did Last Summer

6.420211 season18TV SeriesMysteryDrama

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.

ProducersShay Hatten·Erik Feig

Where to watch

Amazon Prime VideoAmazon Prime VideoAmazon Prime Video with AdsAmazon Prime Video with Ads
Availability shown for United Kingdom · rights vary by country

Seasons & Episodes

E1
It's Thursday
Oct 14, 2021 6.3
E2
It's Not Just for Dog Shit
Oct 14, 2021 5.5
E3
A Gorilla Head Will Not Do
Oct 14, 2021 5.8
E4
Hot Shrimp Salad
Oct 14, 2021 5.9
E5
Mukbang
Oct 21, 2021 5.2
E6
Least You Had a Spare
Oct 28, 2021 5.6
E7
If Only Dogs Could Talk
Nov 4, 2021 5.6
E8
Your Next Life Could Be So Much Happier
Nov 11, 2021 4.9

Cast

MIMadison Iseman
Madison Iseman
Lennon / Alison
BHBill Heck
Bill Heck
Bruce
BTBrianne Tju
Brianne Tju
Margot
ZGZeke Goodman
Zeke Goodman
Dylan
AMAshley Moore
Ashley Moore
Riley
FRFiona Rene
Fiona Rene
Lyla
CBCassie Beck
Cassie Beck
Courtney
BBBrooke Bloom
Brooke Bloom
Clara

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I Know What You Did Last Summer — streaming FAQ

Which OTT platform streams I Know What You Did Last Summer?

I Know What You Did Last Summer is streaming on Amazon Prime Video in United Kingdom. It's not currently on Netflix.

Is I Know What You Did Last Summer on Netflix?

No, I Know What You Did Last Summer is not on Netflix in United Kingdom as of September 2026. It's currently on Amazon Prime Video.

Is I Know What You Did Last Summer on Amazon Prime Video?

Yes — I Know What You Did Last Summer is included with an Amazon Prime Video subscription in United Kingdom as of September 2026.

Where can I watch I Know What You Did Last Summer for free?

I Know What You Did Last Summer is available on Amazon Prime Video in United Kingdom, but you'll need an active subscription — there's no free option right now.

How many seasons are in I Know What You Did Last Summer?

I Know What You Did Last Summer has 1 season in total (8 episodes). The series concluded in 2021.

Are all episodes of I Know What You Did Last Summer out yet?

Yes — all 8 episodes across 1 season of I Know What You Did Last Summer are out and available to stream.

Is there a Season 2 of I Know What You Did Last Summer?

No — I Know What You Did Last Summer ended after 1 season, so there is no Season 2.

What book is I Know What You Did Last Summer based on?

I Know What You Did Last Summer is based on I Know What You Did Last Summer by Lois Duncan.