A family that is scattered get together because of their mother's sudden illness. They begin to about their family.

Since Reiko (Mieko Harada) turned 60-years-old, she seems to get more and more forgetful, but her husband Katsuaki (Kyozo Nagatsuka), first son Kousuke (Satoshi Tsumabuki) and second son Shunpei (Sosuke Ikematsu) do not care or notice. One day, Reiko goes to see a doctor and is diagnose with brain tumor. She only has a week to live.

After Reiko tells the her family that "a family that gets scattered makes me scared," she seems to become a totally different person. As if she has Alzheimer's, Reiko says whatever is on her mind.