湖岸で絵を描いていた石崎秀夫は、恵子という一人の女を救う。女はモデル撮影のため湖に来てボートに乗ったが、突然襲ってきたカメラマンを突き飛ばし、そのまま気を失ったのだという。石崎は彼女が病身の母親と二人だけという淋しい生活を知り、いつしかある感情を抱きはじめていた。

A grade school in Tokyo, where students curse and gamble, has a pond on-premises with one particular teacher who is in charge and takes care of it. The pond holds a number of carp, but someone is snatching them. Amidst the student, one lives with his mother in poverty. The mother works at a factory whose owner is a member of the parent-teacher association and asks her son to help her employer's son to help with homework. Her son is not happy spending time doing this. Finally one day the teacher finds out who is stealing the carp when the poor boy finds out and reports it. It is a child who is not attending the school.