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Of Unknown Origin

5.819831h 28mRMovieHorror

A man who recently completed rebuilding a townhouse becomes obsessed with a rat infestation until it becomes an interspecies duel.

DirectorGeorge P. Cosmatos
WriterBrian Taggert
ProducersClaude Héroux·Pierre David

Where to watch

Availability shown for United States · rights vary by country

Cast · Directed by George P. Cosmatos

PWPeter Weller
Peter Weller
Bart Hughes
JDJennifer Dale
Jennifer Dale
Lorrie Wells
LDLawrence Dane
Lawrence Dane
Eliot Riverton
KWKenneth Welsh
Kenneth Welsh
James Hall
LGLouis Del Grande
Louis Del Grande
Clete
STShannon Tweed
Shannon Tweed
Meg Hughes
KKKeith Knight
Keith Knight
Hardware Salesman
MCMaury Chaykin
Maury Chaykin
Dan Errol
LALeif Anderson
Leif Anderson
Peter Hughes
JT
Jimmy Tapp
Meg's Father
GGGayle Garfinkle
Gayle Garfinkle
Janis Wycoff
EP
Earl Pennington
Mr. Thompson

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More from Jennifer Dale · Co-star actress

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More from George P. Cosmatos · Director

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Leviathan
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Shadow Conspiracy
Shadow Conspiracy
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Escape to Athena
Escape to Athena
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Massacre in Rome
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1973 · 6.3
Sin
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1971 · 5.5
The Day the Fish Came Out
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1967 · 4.8
See all fromGeorge P. Cosmatos

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Of Unknown Origin — streaming FAQ

Which OTT platform streams Of Unknown Origin?

Of Unknown Origin isn't on any subscription service in United States right now, but you can rent or buy it on Amazon Video, Apple TV Store and Google Play Movies. It's not on Netflix.

Is Of Unknown Origin on Netflix?

No, Of Unknown Origin is not on Netflix in United States as of September 2026. You can rent or buy it on Amazon Video and Apple TV Store.

Is Of Unknown Origin on Amazon Prime Video?

Of Unknown Origin isn't included with a Prime Video subscription in United States, but you can rent or buy it on Amazon Video.

Where can I watch Of Unknown Origin for free?

Of Unknown Origin isn't available free in United States; you can only rent or buy it on Amazon Video and Apple TV Store.