Choked (2011)

It's been a year since Hee-su vanished. Youn-ho, who works at a redevelopment firm, ignores his mother's existence and yearns for a new life with his loving girlfriend Se-kyung. When Seo-hee shows up demanding repayment of the money his mother borrowed, Youn-ho is forced to admit he lacks the means or the will to compensate for her loss.