In Search of Darkness: Part II
Starring Nancy Allen, Tom Atkins, Doug Bradley, Clancy Brown, Lori Cardille, John Carpenter, Nick Castle, Jeffrey Combs, Barbara Crampton, Sean S. Cunningham
It's a documentary and horror movie, and has a rating of 7.9 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Spain.