I was going to say The Thing. https://en.wikipedia.org/wiki/The_Thing_(1982_film)
And afterwards you can watch Thingu, approved by John Carpenter.
Honorable mention for “The things”, a short story by Peter Watts. It retells the movie from the point of view of the monster, revealing the sensible— perhaps even admirable— motives behind its actions.
I was going to say The Thing. https://en.wikipedia.org/wiki/The_Thing_(1982_film)
And afterwards you can watch Thingu, approved by John Carpenter.
Honorable mention for “The things”, a short story by Peter Watts. It retells the movie from the point of view of the monster, revealing the sensible— perhaps even admirable— motives behind its actions.