FBI agent Lee Harker (Maika Monroe) is a gifted new recruit assigned to the unsolved case of an elusive serial killer (Nicholas Cage). As the case takes complex turns, unearthing evidence of connections to occult practices, Harker discovers a personal connection to the merciless killer and must race against time to stop him before he strikes again.

https://www.themoviedb.org/movie/1226578-longlegs

Wikipedia page: https://en.wikipedia.org/wiki/Longlegs