I Know What You Did Last Summer

10 Best Episodes of I Know What You Did Last Summer

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.

Written by Sophie and last updated on feb 08, 2023.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

I Know What You Did Last Summer - S1E8

#8 - Your Next Life Could Be So Much Happier (Season 1 - Episode 8)

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.

The episode was rated 6.51 from 133 votes.

I Know What You Did Last Summer - S1E1

#7 - It's Thursday (Season 1 - Episode 1)


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.

The episode was rated 6.73 from 206 votes.

I Know What You Did Last Summer - S1E5

#6 - Mukbang (Season 1 - Episode 5)

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.

The episode was rated 6.85 from 136 votes.

I Know What You Did Last Summer - S1E7

#5 - If Only Dogs Could Talk (Season 1 - Episode 7)


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.

The episode was rated 6.90 from 134 votes.

I Know What You Did Last Summer - S1E6

#4 - Least You Had a Spare (Season 1 - Episode 6)

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

The episode was rated 6.91 from 130 votes.

I Know What You Did Last Summer - S1E2

#3 - It's Not Just for Dog Shit (Season 1 - Episode 2)


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.

The episode was rated 6.95 from 170 votes.

I Know What You Did Last Summer - S1E3

#2 - A Gorilla Head Will Not Do (Season 1 - Episode 3)

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.

The episode was rated 7.01 from 149 votes.

I Know What You Did Last Summer - S1E4

#1 - Hot Shrimp Salad (Season 1 - Episode 4)


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.

The episode was rated 7.07 from 142 votes.

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