Who's That Knocking at My Door? - Full Cast & Crew

• 2007
• 1 hr 28 mins
• Drama, Suspense

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There are five lonely souls: Je-hwi, who hides himself from the world. Jang-hui, who is obsessed with certificates of qualification; Byeong-cheol, who believes that he has a fatal disease; and the lovers, Pyo and Romi. One day, a woman who committed suicide suddenly appears before them.