Tae-Joon Ryu

The film centers around a young and ambitious woman named Ji Eun-Yi (Kim Ha-neul) and her human pet (Jang Keun-suk). After her fiancé leaves her for his mistress and Ji Eun-Yi is demoted at work, she stumbles across a young injured homeless man in a box outside her condominium. She takes him in and becomes attached to him. As a joke, she says she wants to keep him as a pet, and to her surprise, the young man agrees. She names him Momo, after her beloved dog from her childhood. (en.wikipedia.org)