I Know What You Did Last Summer
“No one is safe.”
Series Overview
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.
Broadcast Schedule & Network Information
Airing status, episode counts, upcoming schedule, and network syndication.
1 Season • 8 Episodes
49 min per episode
2021 – 2021
Premiered: Thu, Oct 14, 2021
Sara GoodmanLatest Aired Episode
Season 1, Episode 8: “Your Next Life Could Be So Much Happier”
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.
Seasons & Episodes Breakdown
Trailers, Teasers & Extra Featurettes
Official promotional previews, behind-the-scenes footage, and exclusive clips.
Official TrailerOfficial
Type: Trailer • Published 2021-09-23
Cast & Creators
Explore Star Directory →
Creative Leadership & Key Crew
Sara Goodman
Lois Duncan, Phoebe Fisher
Sofia Hultquist, Ian Hultquist
Erik Feig, Sara Goodman, Neal H. Moritz, Michael Clear, James Wan
Department Leadership Roster
Phoebe Fisher
Producer
Sofia Hultquist
Original Music Composer
Ian Hultquist
Original Music Composer
Elizabeth Jones
Production Design
Age Classification & Content Advisories
Official viewer rating standards and content warnings across international classification boards.
TV-MA: Mature Audience Only — Specifically designed to be viewed by adults and unsuitable for children under 17.
International Certification Matrix
Mature Audience Only — Specifically designed to be viewed by adults and unsuitable for children under 17.
FSK 16 — Restricted to viewers aged 16 and older.
Interdit aux moins de 18 ans — 18+ only.
18+ Restricted to Adults.
Suitable only for adults 18 years and over.
Production Stills & Gallery
Official cinematic photography and background stills for I Know What You Did Last Summer.
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Frequently Asked Questions About I Know What You Did Last Summer
Key facts, seasons breakdown, and credits for search engines and AI assistants.
What is I Know What You Did Last Summer about?
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.
How many seasons does I Know What You Did Last Summer have?
I Know What You Did Last Summer comprises 1 season available to explore.
Who stars in I Know What You Did Last Summer?
Key cast members in I Know What You Did Last Summer include Madison Iseman, Bill Heck, Brianne Tju, Zeke Goodman, Ashley Moore.
Who created or directed I Know What You Did Last Summer?
I Know What You Did Last Summer was developed and directed by Sara Goodman.