Nightbeast

Nightbeast is a 1982 science fiction horror film directed by cult director Don Dohler. It is a remake and sequel of sorts to Dohlers first film The Alien Factor.citation needed The story concerns a small town sheriff who must stop a rampaging alien from killing the residents of Perry Hall, Maryland.

Cinder confronts the beast with his men and some armed residents including a man named Jamie. However, the beast appears invulnerable to bullets and they lose many men to the disintegrator. The next morning, they enlist the help of an expert marksman who shoots off the disintegrator, disarming the beast. However, the marksmans son and another officer perish during the shootout.The police department begin evacuating the town. However, they are unable to convince mayor Bert Wicker to cancel his party for governor Embry. Meanwhile, a delinquent named Drago abuses his girlfriend, who has been sleeping with Jamie. The police then arrive to give her the evacuation order, and after they leave, Draco returns and strangles the girl. When Cinders police find out that Wickers party is in progress, Jamie bluffs that poison gas is escaping from a nearby mine and the partygoers flee in panic. Wicker and his secretary Mary Jane, dispirited by this turn of events, stay home and begin drinking heavily. ........

Source: Wikipedia