

A misfit group of unwitting high school students stumble upon a cursed object, an ancient Aztec Death Whistle. They discover that blowing the whistle and the terrifying sound it emits will summon their future deaths to hunt them down.
Sound
The death whistle itself — reportedly based on real Aztec artifacts.
Practical Effects
Corin Hardy's creature work, no CGI cop-outs here.

Director
Corin Hardy
Trivia, insights & behind the scenes
Real Aztec death whistles produce a human scream-like sound using skull-shaped chambers — the prop was 3D scanned from museum artifacts.
Based on a viral 2019 short story from r/nosleep, adapted after Hardy saw fan art on Twitter.