Armed with just a concept and a lightweight digital camera, Korean director Il-gon Song set out to make a film about the nature of emotional pain -- and the result is this thought-provoking drama. Embarking on a journey to find the mother she never knew, Hye-na (Hye-na Kim) meets up with prostitute Ok-nam (Ju-hie Seo) and singer Yu-jin (Yu-jin Lim). Along the way, the three women form a bond of collective sadness.