A 23-year old temporary employee, Harumi is in a coma after she encounters a car accident. Her life is saved, but she has to stay at a hospital as her leg is badly injured. A nurse called Reiko treats and supports her so kindly. Harumi and Reiko they only meet in the hospital as a patient and a nurse however, they somehow feel very close to each other. With an opportunity that Harumi is discharged from the hospital, Reiko suggests Harumi for room-sharing and they begin to live together. “I want to live with Reiko at all time” “Me too, Harumi” Their experience of room-sharing seems to go without a hitch until Harumi witnesses Reiko’s strange behavior. One after another, mysterious incidents occur around Harumi, and finally a murder. Astonishingly, a woman called Mari, who looks like a Reiko’s clone, appears in front of Harumi.