Annihilation (2018)

Yes — it adapts Jeff VanderMeer's 2014 novel Annihilation, the first book of his Southern Reach trilogy. Alex Garland's film diverges significantly from the novel's structure, which VanderMeer himself was fine with, calling it a psychedelic riff on his book rather than a literal retelling.

Paramount released it in US theaters in February 2018, but worried about its cerebral, hard-to-market tone and sold international rights to Netflix, where it streamed everywhere else. It's the rare 'Netflix original' that's actually a Paramount production with a theatrical US run.

Natalie Portman's biologist Lena confronts her shimmering double at the lighthouse and destroys it with a phosphorus grenade, but the man who returns as 'Kane' is also a copy — and the final shot of their eyes shimmering implies neither is fully human anymore. Garland deliberately leaves the interpretation open, mirroring the book's ambiguity.

Midway through, a mutated bear attacks the team and eerily screams with the stolen voice of a member it had already killed — the 'help me' cries come from the creature's throat. It's routinely ranked among the scariest scenes of the 2010s precisely because the horror is grief weaponized.