Is Of Unknown Origin Worth Watching?
Answer: Maybe not, Of Unknown Origin is likely a skip if you enjoy Horror movies.
It features a runtime of 88 minutes and offers a standard storyline that appeals to mature audiences.

Verdict:Of Unknown Origin is a confirmed FLOP based on our analysis of audience ratings and box office momentum.
With a rating of 5.8/10, it has delivered a mixed experience for fans of the Horror genre.
Answer: Maybe not, Of Unknown Origin is likely a skip if you enjoy Horror movies.
It features a runtime of 88 minutes and offers a standard storyline that appeals to mature audiences.
Last updated: January 18, 2026
Released in the dynamic cinematic landscape of 1983, Of Unknown Origin emerges as a significant entry in the Horror domain. The narrative core of the film focuses on a sophisticated exploration of A man who recently completed rebuilding a townhouse becomes obsessed with a rat infestation until it becomes an interspecies duel. Unlike standard genre fare, Of Unknown Origin attempts to deconstruct traditional tropes, offering a conventional take on its central themes.
The success of any Horror is often anchored by its ensemble, and Of Unknown Origin features a noteworthy lineup led by Peter Weller . Supported by the likes of Jennifer Dale and Lawrence Dane , the performances bring a palpable realism to the scripted words.
Performance Analysis: While the cast delivers competent and professional performances, they are occasionally hampered by a script that leans into familiar archetypes.
In summary, our editorial assessment of Of Unknown Origin (1983) is mixed. With an audience rating of 5.8/10, it stands as a highly recommended experience for genre enthusiasts.
Quick Plot Summary: Of Unknown Origin is a Horror film that crafts an atmosphere of dread and suspense, using psychological terror and visual scares. This summary provides a scannable look at the movie's central conflict and narrative structure.
Ending Breakdown: Of Unknown Origin attempts to tie together its various plot elements. The finale presents its approach to horror resolution.
The conclusion addresses the core thematic questions, offering viewers material for post-viewing discussion.
The final moments of Of Unknown Origin reflect the filmmakers' creative choices, offering an ending that aligns with the film's tone and style.
Consider Watching If:
| Metric / Region | Collection (Approx) |
|---|---|
| Production Budget | $4.0M |
| Trade Verdict | FINANCIAL DISAPPOINTMENT |
The estimated production budget for Of Unknown Origin is $4.0M. This figure covers principal photography, talent acquisitions, and visual effects. When accounting for global marketing and distribution, the break-even point is typically 2x the base production cost.









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Fandango At HomeAnalyzing the audience sentiment, IMDb rating of 5.8/10, and global collection metrics, Of Unknown Origin stands as a challenging project for the creators. It remains an essential piece of the 1983 cinematic year.
Of Unknown Origin has received mixed reviews with a 5.8/10 rating, making it a moderate success with the audience.
Of Unknown Origin is a mixed bag. It might be worth watching if you're a fan of Horror movies, but read reviews first.
Of Unknown Origin may be available for rent or purchase on digital platforms like Apple TV, Google Play, or Amazon Prime Video. Specific streaming availability can vary by country.
_**The Rat from Hell**_ A Manhattan executive (Peter Weller) deals with the rats on Wall Street while defending his brownstone ‘castle’ against a literal vermin. Jennifer Dale plays his secretary while Lawrence Dane and Kenneth Welsh are on hand as colleagues. "Of Unknown Origin" (1983) strikes me as a Stephen King yarn, which makes sense when you figure that this is one of the horror author’s favorite flicks. While the compare/contrast of the protagonist’s life in his home-castle with the rat maze at work is interesting, the premise is too light IMHO to carry a feature film: a man vs. a rat alone in his gothic abode. Weller works well as the resolute hero but, for me, the best thing about it is winsome Jennifer Dale (Cynthia Dale's older sister). Gene Simmon’s wife, Shannon Tweed, makes her feature film debut in a small role. The film runs 1 hour, 28 minutes, and was shot in Montreal. GRADE: C
This analysis is compiled by our editorial experts using multi-source verification and audience sentiment data for maximum accuracy.