At first, this seems as a Spanish version of "Fifty Shades of Grey". The story is similar (young and beautiful woman falls for rich, intense business person). For half the movie, you would think you are watching just an adaptation.
However, at some point, it becomes dark. It is like a train wreck that you know that it will end bad yet you can't move your eyes from it.
It is hard to love this movie. It is easy to hate it. But it is hard to say that it is not realistic. These things do happen. These situations do exist. And this movie was a stylized representation of what happens when a innocent person falls for a psychopath.
I do suggest you watch it. Love it or hate it, but it will hit you hard.