Ah Jung is a married woman in her mid-30s and has a five year-old son. She ghostwrites other people's biographies. When Ah Jung's husband goes away on a business trip, she has no choice but to let her mother stay in their apartment. Ah Jung has problems dealing with her mother, a meddlesome woman who throws constant fits, probably the result of never having been loved by her husband. Her mother also has a habit of putting mayonnaise in her hair to make it shinier. But then one day, Ah Jung finds her mother collapsed on the bathroom floor while trying to put mayonnaise in her hair.