Warning: Contains SPOILERS for The Blackening!The Blackening ending unmasks the killer's identity and their motivations for setting up the deadly game. The 2023 horror comedy directed by Tim Story and written by Tracy Olliver and Dewayne Perkins is based on a 2018 short the latter created as a comedy sketch. The Blackening follows a group of friends as they reunite 10 years after college on Juneteenth to enjoy a weekend filled with games and fun. They later figure out that a sinister plot has begun based on their love for games. Locked in a cabin in the woods, the friend group fights to survive and learn who is trying to kill them, and why.

https://screenrant.com/the-blackening-ending-killer-identity-explained/