They Live is a 1988 American science fiction action horror film written, directed, and scored by John Carpenter, and starring Roddy Piper, Keith David, and Meg Foster. It was based on the 1963 short story "Eight O'Clock in the Morning" by Ray Nelson. Set in Los Angeles, it follows a working class drifter (Piper) who discovers that the ruling class are camouflaged aliens, which drives him on a quest to expose them to the world.