Well, the beginning is very thrilling but you get angry at the bad and dumb decisions the detectives make along the way. And the lack of closing is noticeable in the end, it’s so rushed. It’s not shown what happens when everything changes in the past, and everyone suffers Park Gwang Ho’s farewell as if they’d never see him ever again, I think they could avoid all the bad events of the screenplay if it wasn’t written so lazily.