The Crazies (1973 film)

The Crazies also known as Code Name Trixie is a 1973 American science fiction horroraction film about the effects of the accidental release of a military biological weapon upon the inhabitants of a small American town. The film was written and directed by George A. Romero, and starred Lane Carroll, Will MacMillan, Harold Wayne Jones. Although it failed at the box office during its original release, it has since become a cult classic. A remake of the film was released in 2010.

Set in the small town of Evans City, Pennsylvania, the central characters are firefighter David Will McMillan, his girlfriend, nurse Judy Lane Carroll, and firefighter Clank Harold Wayne Jones. David was a Green Beret and Clank an infantryman, both having served in Vietnam. The town has seen a number of violent events, including arson at a local farm by a demented farmer. Judy and David are very concerned, since Judy is pregnant.Meanwhile, heavily armed U.S. troops in NBC suits and gas masks, arrive in town, led by Major Ryder Harry Spillman, who takes over the doctors office where Judy works. Days earlier, an Army plane carrying an untested bioweapon crashlanded in the hills near the town, infecting the water supply with a virus codenamed Trixie, causing victims to either die or become homicidal. Trixie is highly contagious, with anyone drinking from the Evans City reservoir becoming affected. In Washington D.C., government officials order Colonel Peckem Lloyd Hollar to go to Evans City to help contain the virus, while scientist Dr. Watts Richard France, arrives to develop a cure before the virus spreads beyond the small town. ........

Source: Wikipedia