A man who works late hours at a deadening job lives together with his wife and his younger sister. The younger sister's a modern girl who's starting to receive romantic attention from one of her co-workers.
A young man discovers that the woman who raised him is his stepmother. His stepbrother, who is unaware of the revelation, resents his mother for always punishing him more severely than his stepsibling.
After Japan's defeat in the war, the Anjo family lose their peerage and wealth. Since their mansion is due to pass into the hands of a creditor, the family holds one last ball before leaving.
