“No one is safe.”
Watch I Know What You Did Last Summer for Free in 123Movies
I Know What You Did Last Summer (2021) – Official Series Trailer, Cast & Seasons
I Know What You Did Last Summer at a Glance
I Know What You Did Last Summer is a 2021 mystery and drama TV series created by Sara Goodman, featuring Madison Iseman, Bill Heck and Brianne Tju. It first aired on October 14, 2021 on Prime Video and has 1 season and 8 episodes. The series was canceled, with its last episode airing on November 11, 2021, and it is rated 6.4/10 by TMDB users across 255 votes.
Watch the official I Know What You Did Last Summer trailer for free in 123Movies below.
1080p HD • Free YouTube Stream
Seasons & Episode Catalog (1)
Season 1
8 Episodes • 2021
Where “I Know What You Did Last Summer” Fits in the 123Movies Catalog
Frequently Asked Questions About I Know What You Did Last Summer
When did I Know What You Did Last Summer first air?
I Know What You Did Last Summer premiered on October 14, 2021 on Prime Video.
How many seasons does I Know What You Did Last Summer have?
I Know What You Did Last Summer has 1 season with 8 episodes in total, according to TMDB.
Is I Know What You Did Last Summer still running?
No. I Know What You Did Last Summer was canceled. Its final episode aired on November 11, 2021.
Who stars in I Know What You Did Last Summer?
I Know What You Did Last Summer stars Madison Iseman as Lennon / Alison, Bill Heck as Bruce, Brianne Tju as Margot and Zeke Goodman as Dylan. The cast also includes Ashley Moore, Fiona Rene, Cassie Beck and Brooke Bloom.
Who created I Know What You Did Last Summer?
I Know What You Did Last Summer was created by Sara Goodman.
What network is I Know What You Did Last Summer on?
I Know What You Did Last Summer aired on Prime Video.
How long are I Know What You Did Last Summer episodes?
Episodes of I Know What You Did Last Summer run about 49 minutes, according to TMDB.
What genre is I Know What You Did Last Summer?
I Know What You Did Last Summer is listed on TMDB as a mix of mystery and drama.
What is I Know What You Did Last Summer rated?
I Know What You Did Last Summer is rated TV-MA in the United States. On TMDB it has an average user score of 6.4/10 from 255 votes.
Where can I watch the trailer for I Know What You Did Last Summer for free?
You can watch the official trailer for I Know What You Did Last Summer for free on this 123Movies page. It is embedded from YouTube.
What shows are similar to I Know What You Did Last Summer?
Series TMDB recommends alongside I Know What You Did Last Summer include The Better Sister (2025), Pretty Little Liars: Original Sin (2022), Why Didn't They Ask Evans? (2022), The Purge (2018) and 56 Days (2026).
Can I watch full episodes of I Know What You Did Last Summer on 123Movies?
No. 123Movies only shows official trailers and series information. Full episodes are not hosted or linked on this site.
The Better Sister
Pretty Little Liars: Original Sin
Why Didn't They Ask Evans?
The Purge
56 Days
Fool Me Once
Imperfect Women
Dead Ringers
Sherlock & Daughter
A Good Girl's Guide to Murder
Echoes
