Watch Of Unknown Origin (1983): rent on Apple TV+ or Fandango At Home. Compare all streaming options for this movie on WhereCanIWatch.tv.
Of Unknown Origin
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A man who recently completed rebuilding a townhouse becomes obsessed with a rat infestation until it becomes an interspecies duel.
Of Unknown Origin is a film that explores themes of new york city, based on novel or book, poison. It also touches on animal attack and house and rampage.
Trailer
Director
George P. Cosmatos
Cast
Peter Weller, Jennifer Dale, Lawrence Dane, Kenneth Welsh, Louis Del Grande, Shannon Tweed, Keith Knight, Maury Chaykin, Leif Anderson, Jimmy Tapp
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6 options ranked by value · 🇺🇸 United States
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Last verified 11 hours ago
Of Unknown Origin
Rent on Apple TV+ or buy on Apple TV+.
IMDb
5.8/10
RT Critics
63%
Metacritic
Director
George P. Cosmatos
Cast
Peter Weller, Jennifer Dale, Lawrence Dane, Kenneth Welsh, Louis Del Grande, Shannon Tweed, Keith Knight, Maury Chaykin, Leif Anderson, Jimmy Tapp
6 options ranked by value · 🇺🇸 United States
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new york city · based on novel or book · poison · animal attack · house · rampage · rat · canuxploitation · animals gone wild · giant rat
Rent Of Unknown Origin on Apple TV+. Rent Of Unknown Origin on Fandango At Home. Rent Of Unknown Origin on Google Play Movies. Buy Of Unknown Origin on Apple TV+. Buy Of Unknown Origin on Fandango At Home. Buy Of Unknown Origin on Google Play Movies. Of Unknown Origin is not currently available on Netflix, Hulu, Max, Disney+, Prime Video. Availability last verified April 16, 2026.