TV Series · 2021 · TV Series · 2020s
I Know What You Did Last Summer
Scored from 200 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: TV Series · 2020s (3,070 peers).
Summary
A year after a deadly accident on graduation night, a group of friends in a small Hawaiian town begin receiving anonymous messages threatening to expose the secret they swore to keep buried. As members of the group are stalked and killed one by one, they must uncover who knows what they did before the killer reaches them. The series reimagines the 1997 film and Lois Duncan novel with a new ensemble and town.
I Know What You Did Last Summer (2021) is a television series IMDb files under the drama, horror and mystery genres.
Rotten Tomatoes carries a separate audience for the same title, 33 of whom clear the calibration test. The cohort it is ranked inside is 2020s television series — 3,070 of them. The calibrated figure is built from 200 reviewers whose rating history varies enough to place their own average. A broader pool of 214 reviewers with two or more reviews feeds the raw-average track instead.
How the score was built
We compare the reviewers of this title against every other title those same people reviewed. Each review is scored relative to the reviewer's own baseline — a 7/10 from a hard grader sits well above their average, while a 7/10 from a generous grader sits below theirs. Every reviewer then counts the same, so the result is a calibrated consensus rather than a raw average.
- Global percentile
- Where I Know What You Did Last Summer lands against every title we rank.
- In-cohort percentile
- The same comparison narrowed to its cohort — titles of the same format released in the same decade. A 1970s film is judged against 1970s films, not against last year's streaming series. Ranked against TV Series · 2020s (3,070 titles).
- AI-adjusted percentile
- The same reviewer-normalized score, corrected for how much confidence the sample supports: thin samples are pulled toward the corpus average. Each title keeps the share n / (n + 53) of its measured distance from the average, where n is its calibrated-reviewer count, and the result is ranked on the same scale as the global percentile.53 is the median sample size across everything we rank. Here n is 200.
Cohort: TV Series · 2020s
