After witnessing the deaths of his mother and sister as a child, Sang-hoon grew up with rage and hatred towards his father, who was responsible for their deaths. Now a merciless debt collector regularly beats his father who returned home after 15 years in prison. Though he hesitates to get any closer to his father, he often comes to see his half sister and nephew. One day, he meets a high school girl, who has also been trying to get by since her mother's passing, four years before.
