The body of a teenage girl floats down a river in Korea. Mija, a neatly dressed, 65-year-old, working-class widow, is diagnosed with early Alzheimer's. Every afternoon, she attends to an old man suffering from a stroke who seeks sexual relief from her and she waits hand and foot on her lazy, ungrateful grandson while her daughter is working in Seoul.
Meanwhile, she joins a poetry class at a social centre and wonders about personal creativity. What unites the various strands of an apparently simple woman's life and a society she struggles to understand? The answers are gradually provided by a thoughtful, cleverly developed script.
As her mind becomes clouded by dementia, Mija is drawn into a conspiracy by a group of parents at a school to cover up a suicide brought about by rape and humiliation involving her grandson. Steadily, she acts with a new moral and social awareness, organises what remains of her life and discovers the inspiration to write poetry. A fascinating, satisfying film with a remarkable central performance.