Izumi lives with her much older husband Shigeru and their son Hiroyuki. Because Shigeru is old, their marital relations are virtually nonexistent, but with her kind husband and son, they live a life filled with Izumi that could easily be achieved without them. One day, her husband is hit by a bicycle while walking down the street. Izumi does not know at the time that her encounter with the man on the bicycle, Minami, will awaken the desires of a woman that lie dormant within Izumi ...