What happened is what happened. There is no going back. But how much you want to go back and fix what prevents you from living in the present.
How many times in our lives have we wanted to change this or that fact of our past that prevents us from living? This film asks that question and ruthlessly answers it. Whereas in other well-known film productions time can be reversed (The Cause), corrected (Terminator: Judgment Day) or created several parallel realities (Avengers: The Final Solution), here everything is much more simple and rigid, just like in life.
And it really doesn't matter whether everything that happens in the movie was real or it is just an invention of a mentally ill main character - the savior of human souls. What is important is that time is beyond our control. No matter how much we dream of one day traveling through the centuries of the past or the future, it will always come to its end for each of the inhabitants of this world. The only question is when?
All that remains for mankind is to walk its path with dignity, enabling itself and future generations to thrive on this planet. And not to forget that in addition to time it is also necessary to respect nature and not to play dangerous games with it, which sooner or later may lead to monstrous consequences...