Toyoda Toshiaki's latest offering begins as a quirky comedy about an eccentric little family, before veering off into far darker territory. Koizumi Kyoko stars as Eriko, mother of a perfectly normal suburban family. She has a salaryman husband, two teenage children (one girl, one boy) and is herself a housewife. She has a terminally ill mother that she cares for and a family she adores. But she also has a very bizarre rule that affects every member of the household. Everyone must tell the truth about everything. All the time. So when her daughter Mana asks one morning where she was conceived, Eriko and her husband happily inform her that it was at a love hotel in town that is still open today. Mana is intrigued and sets out to find the establishment for herself.

Here it is exposed that the family members are not half as quaint as they appeared. Eriko's husband is really a philandering cheat with at least two mistresses on the go, the kids rarely go to school and all of them lie through their teeth on a daily basis. Even Eriko suffers long and hard dealing with her mother. The veneer of domestic bliss begins to crack, and Toyoda has no qualms about showing us every little detail.