Over and Over Again(2013)

Original title: 개똥이

Two people who don't seem like identical twins, with both having love lives going nowhere. Yet, Gae-ddong suffers from a traumatic childhood experience and is introverted with low self-esteem. Meanwhile, his friend Changsoo is proud and boisterous. As Gae-ddong finds happiness, troubles reoccur, building to a final crescendo.