Ranko, a widow running a boarding house, has grown close to her brother-in-law, who has lived with her since her husband's death. One night, a new male student lodger arrives—innocent and naive in demeanor. Taking advantage of the situation, the brother-in-law begins passionately caressing Ranko without regard for time or place. Night after night, the faint sounds of a woman's moans echo through the house, leaving the student unable to sleep... A clandestine crossroads of repressed desire and longing unfolds in the quiet hours of the boarding house.