After three happy years of marriage to a seemingly faithful husband, Miho receives word that he has been injured in a bicycle accident far from where he claimed to be attending a company party. Suspicious of his behavior, she checks his phone and discovers his affair with a hostess. Heartbroken, she is comforted by hospital director Ozawa. His sincere attention draws her closer day by day, until loneliness pushes them into a forbidden, lingering kiss and an intimate affair inside her husband's hospital.