Carnival of Souls (1962)
https://archive.org/details/CarnivalOfSoulsVideoQualityUpgrade
Free to stream or download. Click on the link above to go straight to the movie.
More information:
http://thepeoplesmovies.com/2013/10/31-days-horror-day-22-carnival-souls-1962/
https://en.wikipedia.org/wiki/Carnival_of_Souls
https://www.rottentomatoes.com/m/1003612_carnival_of_souls