Hyo-sup is a struggling writer who is romantically involved with both Min-jae and Bo-kyung. Min-jae works several odd jobs to make ends meet and is head over heels in love with Hyo-sup, even though he treats her poorly. Bo-kyung is Hyo-sup's true object of affection, however, she's married to someone else. That someone else is Dong-woo, who is out of town on business for his water purifier company. Several seemingly unconnected incidents in their mundane lives are later linked in some way as the distress continues to build.