I was originally attracted to this movie by the unusual plot (never heard of another movie dealing with someone's past before) and thought that it would be some sort of sci-fi movie but I was pleasantly surprised that it is not.
The script is not error prone. The movie does lacks rhythm at times. However, Lazaro is a superb actor and Alinne does her job very well too.
In summary, it is well worth the short (~1h) plot - after disregarding the countless producers, supporting companies and everyone else that just takes forever at the beginning of every Brazilian movie. As a Brazilian I just feel like I'm paying for it every time I watch a Brazilian movie (and as a matter of fact myself and most Brazilians are, as many of these supporters are state companies or banks). Nevertheless I just felt that money was well spent in this one.