Kim Ji Young: Born 1982

Kim Ji Young has one of the most common female names for people her age. She works at a PR agency. Kim Ji Young gets married and has a daughter. So she can raise her daughter, Kim Ji Young quits her job. She leads an ordinary life up to this point. Suddenly, Kim Ji Young begins to talk like her mother, her older sister and other people. She seems possessed by other people. What happened to her?