This is a Mexican drama. It tells the story of a hopeless case of middle-aged Augusto, who is a teacher, husband to beautiful Ruth and falls for a destructive passion for a 13-year old sort of adopted daughter of his.
The tragic journey to catch the escaping dove (or maybe in Mexico it is more like a seagull) should teach him a lesson. Yet he never learns and carries on through neckbreaking quest. The trip he undertakes is less geographical and more existential. There is a very high ladder he falls down from.
Perhaps this is a portrayal of contemporary Mexico and how thin the border is between the rich and the poorest. Perhaps this is a tale showing how relatively simple it is to switch from a fairly comfortable life to a life in the gutter.
All in all, perhaps the strongest side of this film is the costume, the colour, the music and the illusive beauty of the girl, who seems so innocent.