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A Bay of Blood (1971) poster
1971
global pct
65.7

Film · 1971 · Films · 1970s

A Bay of Blood

Two parallel scores from 137 z-qualifying reviewers and 137 raw-average reviewers. Cohort: Films · 1970s (2,406 peers).

65.7%
Z · Global
57.3%
Z · Cohort
Films · 1970s
51.0%
Raw · Global
45.0%
Raw · Cohort
Films · 1970s
Two scores · one item
Z-normalized · global
65.7
Z-normalized · cohortFilms · 1970s
57.3
Raw average · global
51.0
Raw average · cohortFilms · 1970s
45.0

Z-normalized corrects for reviewer bias (every reviewer re-centered onto their personal scale). Raw average uses simple mean across the broader pool including stddev=0 reviewers.

Where this title sits

0255075100

Z-normalized percentile · 2,406 peers in Films · 1970s

Mean reviewer z-score+0.184
DB1 raw-mean rating6.75 /10
DB2 raw-mean rating6.75 /10
90% CI-floor (z)+0.044
Reviewers (DB1 / DB2)137 / 137

Summary

A wealthy countess is murdered at her secluded bayside estate, triggering a violent chain reaction as heirs, neighbors, and opportunists scheme to claim the valuable property. As bodies pile up, greed and betrayal drive an escalating series of brutal killings around the bay. Mario Bava's proto-slasher is a landmark of Italian giallo and a major influence on later stalk-and-kill horror.

Pipeline applied to this title

The math, in this order

01
Z-score per reviewer

137 stddev>0 reviewers re-centered onto personal z-scale.

02
Aggregate

Mean z = +0.184. DB2 raw mean = 6.75.

03
CI-floor

90% CI-floor = +0.044. Thin samples penalized.

04
ECDF percentile

Global 65.7 / cohort 57.3. Z-track and raw-track ranked separately.

Cohort: Films · 1970s

Closest peers in the same cohort

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