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I Know This Much Is True poster

I Know This Much Is True (2020)

Drama

The parallel lives of identical twin brothers Dominick and Thomas Birdsey in an epic story of betrayal, sacrifice and forgiveness set against the backdrop of 20th century America.

IMDb rating
8.1 (27,813 votes)
Seasons
1
Streaming (US)
HBO Max
Language
EN
Type
Mini-series
Browse all Big finale seasons in the explorer → Open in Rising Shows app → View on IMDb

Ratings refreshed Jul 3, 2026 · 1 season indexed

Cast

Seasons

Season 1 (2020)

8.27 avg 6 episodes 7.9 → 8.7 63 min avg

Ep 1: 7.9 · 1,550 votesEp 2: 8.3 · 1,254 votesEp 3: 8.3 · 1,147 votesEp 4: 8.3 · 1,084 votesEp 5: 8.1 · 1,035 votesEp 6: 8.7 · 1,142 votes
Season 1 episodes — IMDb ratings
#TitleRatingVotes
1One7.91,550
2Two8.31,254
3Three8.31,147
4Four8.31,084
5Five8.11,035
6Six8.71,142
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Episode ratings and vote counts from IMDb. Poster, overview, and streaming data from TMDB. Data refreshed 2026-07-03.

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