I have this scene from a movie stuck in my head where a man has an alien lifeform infecting his hand. On top of that, I have a vague memory of this being at the end of the movie, and of the "infection" having kind of a "mini monster head".
I already mistook this movie for The Abyss (1989) and Event Horizon (1997); it's neither of them. The movie is surely not newer than early 2000s. Can someone help me? Does anyone remenber a scene like this from a mid-'80s to early 2000s sci-fi film?