Bad has no explanation for man they killed for money near the beginning. We have no explanation for why the nasty face guy is a chronic liar, or how they know each other, or why they are even together, although we can use some conjecture yes. The acting is sometimes very very good, sometimes horrible. I didn't find it much of a plot twist at the end, it was somewhat predictable. The very end is about as vague as one can get, and the nasty guy, whatever became of him ? Big thumbs up to Katie.