No wonder Yoo Ah-in bagged the best actor award at the Baeksang this year. Despite the absence of dialogue, he was able to convey the message his character and role intended. His impairment somehow served him good for the labor he is engaged in. Lessened the burden of guilt and morality. As the story progressed, he was left to tend a girl that was purely meant to provide a source of income. Contrary to his job, the girl still saw something in him that made her choose to stay. In the brief period they spent together, it is disheartening to see how the girl condoned the same practice (cleaning the mess) when confronted with the unprecedented situation with the cop. This movie is a good illustration of 'action speaks louder than words' adage.