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Warning Sign (1985)

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A woman working as a security guard in an agricultural research facility finds herself and her co-worker Schmidt fighting to survive against their former friends.


Hal Barwood





Cast overview, first billed only:
Sam Waterston ... Cal Morse
Kathleen Quinlan ... Joanie Morse
Yaphet Kotto ... Major Connolly
Jeffrey DeMunn ... Dr. Dan Fairchild (as Jeffrey De Munn)
Richard Dysart ... Dr. Nielsen
G.W. Bailey ... Tom Schmidt
Jerry Hardin ... Vic Flint
Rick Rossovich ... Bob
Cynthia Carle Cynthia Carle ... Dana
Scott Paulin ... Captain Walston
Kavi Raz ... Dr. Ramesh Kapoor
Keith Szarabajka ... Tippett
Jack Thibeau Jack Thibeau ... Pisarczyk
J. Patrick McNamara ... Connolly's Aide
Tom McFadden Tom McFadden ... Deputy Grazie


In an ultra secret laboratory for the developing of biological weapons, covered as "Biotek", a research center for agriculture, a serious accident occurs, spreading a sinister bacteria in the laboratory. The security guard of the complex, closes and seals the building, with all the personnel inside, making very difficult the struggle for survival, not to mention the actions that the relatives of the enclosed people are thinking to do. Written by Luis Carvacho <lcarvach@lascar.puc.cl>

Plot Summary | Add Synopsis


Pray for the people trapped inside. Pray that they never get out See more »


Drama | Sci-Fi | Thriller


R | See all certifications »

Parents Guide:

View content advisory »






Release Date:

23 August 1985 (USA) See more »

Also Known As:

Contact mortel See more »

Filming Locations:

La Crescenta, California, USA See more »


Box Office

Opening Weekend USA:

$707,990, 25 August 1985, Limited Release

Gross USA:

See more on IMDbPro »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

1.85 : 1
See full technical specs »

Did You Know?


The working title for the film was "Biohazard". See more »


When the guy is using the acetylene torch on the door he has a darkened plate on his visor to protect his eyes, but everyone else is watching without the protection and would damage their eyes by looking at the torch. See more »


Dr. Nielsen: I hear you've uncovered a new antitoxin. How 'bout we tackle that?
Dr. Dan Fairchild: It's over, Nate.
Dr. Nielsen: Over? No... look... look how much we've learned!
[Nielsen shoots himself in the head with a gun while Dan Fairchild watches in horror]
See more »


Referenced in Rewind This! (2013) See more »


Joanie Forced To Talk
Performed and composed by Craig Safan
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User Reviews

Make it more of a horror movie and I would have loved it.
6 April 2009 | by Aaron1375See all my reviews

This movie has a facility that manufactures chemical agents and such in it. Well there is a problem at said facility and there is the movie. Well not quite, seems a deadly virus or something to that effect has been accidentally released. The lady working security and such locks the place down which is what she is supposed to do under the circumstances. Well people inside the place want out insisting they are fine and the family members on the out want in worried about their loved ones. Then the movie takes a twist and those infected become increasingly violent adding to the horror aspect of the film. If this movie had a bit more of the violent killer psychopaths I admit I would have enjoyed it more, still it made for an entertaining thriller. You keep hoping they will find a way to get rid of this infection, that they will be able to keep the relatives from totally going nuts and breaking in, and you hope those trapped inside stay inside because if not the world will become exposed. Interesting movie that would have been more of a film I liked had they moved a little faster to infection starting to really make the people go crazy.

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