Saya, who works as a nurse, advises her husband Hiroshi, who is not feeling well, to go to the hospital, but she has no idea that this will turn Saya's life upside down. A few days later, Hiroshi comes to the hospital as Saya told him to. After the examination, the doctor tells Saya that he has a much more serious illness than she thought... Wanting to spend more time with her husband, Saya frequently works night shifts. However, another tragedy befalls Saya at the hospital late at night...