Film · 2023 · Films · 2020s
When Evil Lurks
Scored from 231 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 2020s (7,930 peers).
Summary
In a remote rural village, two brothers discover that a man in a nearby house has become a 'rotten' - a person infected by a demon about to be born into the world. When local authorities mishandle the removal, the infection spreads, forcing the brothers to flee with their family while strict rules for containing demonic possession unravel around them.
When Evil Lurks is a 2023 horror film.
The cohort it is ranked inside is 2020s films — 7,930 of them. The calibrated figure is built from 231 reviewers whose rating history varies enough to place their own average. A broader pool of 251 reviewers with two or more reviews feeds the raw-average track instead. Rotten Tomatoes carries a separate audience for the same title, 228 of whom clear the calibration test.
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 When Evil Lurks 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 Films · 2020s (7,930 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 231.
Cohort: Films · 2020s
