On the loose: An alien parasite is attacking people at an American scientific research station in Antarctica. It looks like the people it attacks. In part because they don't know who has been absorbed, and because their paranoia could break them apart, this mission is more difficult than they thought it would be.
With its extremely gory and detailed effects, John Carpenter's 1982 box office disappointment "The Thing" sent critics fleeing for the hills. Most of the life lessons you could learn from this film are best avoided. It is still held up to this day as an example of why practical effects original site hold up far better than CGI over time. If you don't mind spending time in prison, that is.