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I Know What You Did Last Summer films, ranked by how scary they are

Every film in I Know What You Did Last Summer Collection on Scare Scale, from the scariest to the least scary, as rated by people who've watched them.

I Know What You Did Last Summer (2025) is number one on this list, with a Scare Scale score of 4.7 out of 10 from 1 rating. It's followed by I Know What You Did Last Summer (1997) and I Still Know What You Did Last Summer (1998).

4 films · Average score 4.7 out of 10 from 1 rated film · Updated

Films in this list

Seen one of these and think it's in the wrong place? Open the film and add your rating. Every score here comes from people who've watched it.

About this list

Which I Know What You Did Last Summer film is the scariest?
I Know What You Did Last Summer (2025) is number one on this list, with a Scare Scale score of 4.7 out of 10 from 1 rating. It's followed by I Know What You Did Last Summer (1997) and I Still Know What You Did Last Summer (1998).
How is this list put together?
Released horror films in the I Know What You Did Last Summer series, rated or not, ranked by overall Scare Scale score, highest first. Every score is the average of ratings from people who've watched the film, out of 10, and the list updates as new ratings come in.