Impulse is a 1984 American science fiction thriller film directed by Graham Baker and starring Tim Matheson, Meg Tilly and Hume Cronyn.

As the day progresses, the townspeople and Stuart begin to exhibit signs of violent and extreme sexual behavior.

Jennifer visits her friend Margo where she observes evidence that she broke her son's arm.

Stuart discovers that Jennifer's brother Eddie harbors incestuous feelings for her and kills him.

After the plane takes off, Stuart walks up to the other man whose government vehicle is filled with radios, on which he hears talk about spraying the town.