51-year-old Kozue lost her husband to illness 10 years ago and has been living with her son ever since. Her son, who is 23 years old, just started his job this spring. He is increasingly resembling Kozue's late husband, which makes her heart skip a beat several times a day. As Kozue turns 51, she recalls the 'woman' she had long forgotten, triggered by something, and she can no longer hold back...