The film keeps you engaged from the start, and leaves plenty to think about when it's over. And yet it is neither preachy nor pretentious. It starts off as a film about the things people would be prepared to do in order to achieve their dreams, but it moves on to other themes, such as what you think you need vs. what you really need, being able to live with oneself having achieved something through trickery and evil deeds, or good outcomes eventually arising from people's intentions to actually do bad things. The film does not involve action, it is based around dialogue. But rest assured, it will never bore you, and it will keep introducing twists that will keep you engaged and constantly guessing what will happen next.