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Unknown Serial Killers of America poster

Unknown Serial Killers of America (2025)

Biography · Crime · Documentary

Explores the chilling cases of lesser-known serial killers whose crimes went unnoticed for years, leaving a trail of fear and unsolved murders before they were finally caught.

IMDb rating
7.4 (105 votes)
Seasons
1
Streaming (US)
YouTube TV · OXYGEN · Fandango at Home Free · Spectrum On Demand
Language
EN
Type
TV series
Browse shows by rating shape → Open in Rising Shows app → View on IMDb

Ratings refreshed Aug 19, 2026 · 1 season indexed

Seasons

Season 1 (2025)

7.27 avg 6 episodes 7.4 → 7.6 42 min avg

Ep 1: 7.4 · 16 votesEp 2: 7.0 · 15 votesEp 3: 7.0 · 13 votesEp 4: 7.1 · 12 votesEp 5: 7.5 · 14 votesEp 6: 7.6 · 11 votes
Season 1 episodes - IMDb ratings
#TitleRatingVotes
1Carl Watts7.416
2William Suff7.015
3Daniel Conahan7.013
4Terry Rasmussen7.112
5Maury Travis7.514
6Herb Baumeister7.611

Episode ratings and vote counts from IMDb. Poster, overview, and streaming data from TMDB. Data refreshed 2026-08-19.

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