This video explores and explains the Lady in Black with scene analysis and personal theories.

Angel Heart was released in 1987, written and directed by Alan Parker. It was based on the novel, "Fallen Angel" by William Hjortsberg. Harry Angel was played by Mickey Rourke. Louis Cyphre was played by Robert de Niro.

Disclaimer:
This is an analysis that explores the many concepts of filmmaking for the purposes of study, research, and commentary created under the allowances of "fair use". There will be spoilers.

Music credits
spc X2x (Unseen Presence) by Kevin MacLeod