In thirty minutes you can build a world or you can end it. No more is needed, not one more minute. Half an hour (and an epilogue) achieves it in a fast-paced story, where the viewer is overwhelmed by the tragedy that he contemplates, without being able to do anything to avoid it. And he does it with a mastery of storytelling that allows us to contemplate the drama from a swivel chair in which space and time multiply like pieces of a fascinating puzzle that only the viewer can complete. Thirty minutes. You dare?