Woman of the Hour (2024, dir Anna Kendrick)

A drama based on the true story of the time that a serial killer competed on and won a date on the popular TV game show The Dating Game. The killer, Rodney Alcala, was in the midst of a killing spree in 1978 when he brazenly took part in the show.

https://www.themoviedb.org/movie/835113-woman-of-the-hour