Durably taut, but rather restraint little low-budget biological thriller that sees a group of scientists quarantined inside a building when a deadly chemical agent they're working on is accidentally released, causing them to become violently homicidal. Caught in the middle of it is a lady security guard, who might just hold the answer for a vaccine, as she seems unaffected.
Confidently directed, thoughtfully written (as it could be seen as a minor blue print for "Resident Evil") and exemplary performed, but "Warning Sign" seems to go by unnoticed, despite it's considerably gripping and unnerving progression. Their low-scale origin is probably what tips it in that forgotten category, because it's not excitingly barnstorming in its thrills or cast. Nonetheless it bestows moments of furious intensity and compact suspense
in what feels like a waiting game after not taking all that long to get into it. The acting led perfectly pitched by Kathleen Quinlan, Sam Waterston, Jeffrey DeMunn, Richard Dysart, G.W. Bailey and Yaphet Kotto. Craig Safan chips away with an ominously airy electronic score. Director Hal Barwood well measured style, ably operates with his actors in constructing a real fearful mood inside the building, but also making the air outside just as dangerously on-edge. When it came to its irony enclosed ending, it felt a little out of place and rather forced than what it naturally built-up.
An earnest, but well engineered sci-fi / horror outing that's more than your simple filler.
