The Thing (1982)
A 12 man research team in Antarctica is hunted by a shape-shifting alien that assumes the appearance of its victims. You can go by the canon as stated, or a alternate universe where they shape-shifting alien never existed.

A 12 man research team in Antarctica is hunted by a shape-shifting alien that assumes the appearance of its victims. You can go by the canon as stated, or a alternate universe where they shape-shifting alien never existed.
