Don't Move (2024, dir Adam Schindler and Brian Netto)

A grieving woman hoping to find solace deep in an isolated forest encounters a stranger who injects her with a paralytic agent. As the agent gradually takes over her body, she must run, hide, and fight for her life before her entire nervous system shuts down.

https://www.themoviedb.org/movie/1063877-don-t-move