This rendition follows Unamuno quite closely. I suspect that viewers who have not read Unamuno will be puzzled by the ending.
The movie starts out bright with just a hint of the doubts of the heroine. The "hombre" of the title has none of those doubts, and therein "hangs a tale." The dark and light play off each other throughout the film, and are masterfully used. Seemingly innocent actions result in disaster and guilty ploys are serenely foiled. The director knows his Unamuno and plays it for all its worth.
This is a very good film for those seeking to understand Old Spain (before the EEC) and how male and female were expected to act their roles. I saw it years ago, and I still remember it, scene for scene.