No One Heard the Scream
Nadie oyó gritar (original)
A woman sees a man throw a person into an elevator shaft and helps him to get rid of the body. During this adventure the man falls in love with the witness to his crime.
Starring Carmen Sevilla, Vicente Parra, María Asquerino, Antonio Casas, Tony Isbert, Goyo Lebrero, Felipe Solano, Ramón Lillo, Antonio del Real
Watch "No One Heard the Scream" from streaming services Fandor, Fandor (Prime), Roku Channel and several more released in 1973. It's a mystery and horror movie, and has a rating of 6.2 out of 10 from Imdb which is usually fine for this kind of movie.