For those unfamiliar with the genre, body horror relies on the simultaneous appeal and repulsion of observing the human body in a state of mutation or decay. Man sized flies, decapitated bodies carrying their own heads, VCR-compatible stomachs: all great watches before dinner!
It's the first week of winter in 1982. An American Research Base is greeted by an alien force, that can assimilate anything it touches. It's up to the members to stay alive, and be sure of who is human, and who has become one of the Things.
A group of scientists have developed the Resonator, a machine which allows whoever is within range to see beyond normal perceptible reality. But when the experiment succeeds, they are immediately attacked by terrible life forms.