So-young, a 65-year-old woman, is known as the 'Bacchus lady,' one of the most reputed prostitutes for old men at Seoul's old park. She pays a visit to her customer SONG after learning that he has had a stroke. SONG, having been abandoned by his family, bemoans his miserable life and begs So-young to end it. So-young decides to assist him after much deliberation. When she confesses SONG's death assistance to another customer, Jae-woo, he asks if it is possible to kill his Alzheimer's-affected friend. So-young persistently refuses, but eventually agrees to his request. So-life young's is thrown into disarray when Jae-woo eventually asks her to assist him in committing suicide after a long period of loneliness.