The story is not credible. The dialogues are unrealistic. And you could tell the book was written by a psychology (Rolon) who feels the need to defend his profession the whole time. I think he feels guilty about something.
The actors are really bad. Vicuña does a really bad job trying to hide his Chilean accent. He could just play it as Chilean character. But sometimes he sounds Chilean and sometimes not. Suarez is just a pretty face but do not ask her any range or depth. The rest of the cast overact the whole time.