I Know What You Did Last Summer poster

Where to watch I Know What You Did Last Summer (2021)

  • Web series
  • English
  • 1 season, 8 episodes
Creator
Sara Goodman
First aired
14 Oct 2021

Where to watch in India

Subscription

Last checked: 28 Sep 2026, 12:11 PM IST. Report a problem

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Story

A group of friends in a Hawaiian town carry the weight of a traumatic incident from the previous summer. When one of them receives a sinister message, they realize someone knows about their secret and wants revenge. As threats escalate, the friends must confront their past while questioning who among them—or outside their circle—holds the key to their guilt.

Why watch

  • Mystery-driven drama that unfolds across eight episodes with interconnected storylines
  • Ensemble cast including Madison Iseman and Bill Heck in a tense narrative
  • English-language series exploring themes of secrets, loyalty and consequences

Good for: Viewers who enjoy mystery dramas with darker themes; not recommended for young children due to the genre's mature content.

Trailer

Cast

  • Madison Iseman Madison IsemanLennon / Alison
  • Bill Heck Bill HeckBruce
  • Brianne Tju Brianne TjuMargot
  • Zeke Goodman Zeke GoodmanDylan
  • Ashley Moore Ashley MooreRiley
  • Fiona Rene Fiona ReneLyla
  • Cassie Beck Cassie BeckCourtney
  • Brooke Bloom Brooke BloomClara

Frequently asked questions

Which OTT platform is I Know What You Did Last Summer streaming on?

I Know What You Did Last Summer is currently available in India on Amazon Prime Video and Amazon Prime Video with Ads.

Can I watch I Know What You Did Last Summer for free?

No, you need a Amazon Prime Video and Amazon Prime Video with Ads subscription to watch I Know What You Did Last Summer.

Who is in the cast of I Know What You Did Last Summer?

I Know What You Did Last Summer stars Madison Iseman, Bill Heck, Brianne Tju, Zeke Goodman and Ashley Moore.

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