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Bug (1975)

PG  |   |  Sci-Fi, Horror, Mystery  |  6 June 1975 (USA)
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An earthquake releases a strain of mutant cockroaches with the ability to start fires, which proceed to cause destructive chaos in a small town. The studies carried out by scientist James ... See full summary »



(novel), (screenplay), 1 more credit »
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Title: Bug (1975)

Bug (1975) on IMDb 5.1/10

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Complete credited cast:
James Parmiter
Carrie Parmiter
Gerald Metbaum
Norma Tacker (as Jamie Smith Jackson)
Mark Ross
Tom Tacker
Sylvia Ross
Brendan Dillon ...
Frederic Downs ...
Henry Tacker (as Fred Downs)
James Greene ...
Reverend Kern
Kenny Tacker
Sam Jarvis ...
Taxi Driver
Bard Stevens ...
Security Guard


An earthquake releases a strain of mutant cockroaches with the ability to start fires, which proceed to cause destructive chaos in a small town. The studies carried out by scientist James Parmiter, however, reveal an intent with much more far-reaching consequences. Written by Ross Horsley <>

Plot Summary | Add Synopsis


Out of the worst nightmare! See more »


Sci-Fi | Horror | Mystery


PG | See all certifications »

Parents Guide:





Release Date:

6 June 1975 (USA)  »

Also Known As:

The Hephaestus Plague  »

Box Office


SEK 774,165 (Sweden)

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

1.85 : 1
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Did You Know?


The set used for the Partmiter home, where 'Joanna Miles' 's character has her head set ablaze by a "bug", was the same set at Paramount Studios in Hollywood as the one used for the interior of the Brady home in ABC-TV's The Brady Bunch (1969). Due to very poor ratings, the series had been canceled in 1974, a few months before filming on this film began. Since this film's release in 1975, "The Brady Bunch" became a ubiquitous hit in syndication, and the set has become easily recognizable to several generations of classic TV watchers, even though the set was altered for use in this film. See more »


Referenced in Spine Tingler! The William Castle Story (2007) See more »

Frequently Asked Questions

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User Reviews

Bug, you light up my wife
1 May 2011 | by (Australia) – See all my reviews

Loosely based on the novel "The Hephaestus Plague" about a strain of self igniting cockroach that is unleashed on a rural town following an earthquake. Local professor (Bradford Dillman) must learn more about the bugs in an attempt to stop the path of destruction, but finds himself aiding their evolution into unassailable marauders.

Interestingly handled thriller, produced by horror royalty in William Castle focuses on the mental disintegration of the lead character, following the death of his spouse. His obsessive determination to destroy the bugs leads him to the brink of insanity, while the bugs conversely enhance their intelligence through the reinforcement gained in his experiments. Where most of the cast (Gilliland, Vint, Jackson, Miles) fade out after the first half, Fudge and McCormack come into focus in the second half, as they attempt to coax Dillman out of his self imposed isolation.

The concept that mankind is the subject of the experiment and ultimately the more vulnerable of the two species, is canvassed abundantly in the second half of the film and while engaging, slows the pace considerably. Overall, I found "Bug" an entertaining tale that improved with each subsequent viewing and an ideal swansong for horror maestro Castle.

2 of 4 people found this review helpful.  Was this review helpful to you?

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