故事发生在日本埼玉县，在这里，有一条专门从事铸铁生意的街道，石黑辰五郎（东野英治郎 饰）就是一名铸铁工人，在松永工厂里干活，在这里，除了一个叫做塚本克己（浜田光夫 饰）的男人是年轻人外，其余的工人都是上了年纪的老头子。因为工厂效益不好，松永工厂被大企业丸三公司吞并了，辰五郎等老员工，因为年纪太大而遭到了无情的解雇。

　　在朋友父亲经营的公司里，辰五郎好不容易找到了一份工作，却因为自己太过于默守陈规，不了解新技术，最终，辰五郎还是选择了辞职。为了补贴家用，辰五郎的妻子不得不在照顾孩子的同时，偷偷跑到居酒屋去当女招待。这一切都被纯子（吉永小百合 饰）看在眼里。

A young girl in an industrial town is saving her money to enter college. But her drunken father loses his job, her mother cannot make ends meet, and then the boy she likes loses everything when his factory fails. She takes all her savings out of the bank and offers them to him to make a new start. He refuses at first but eventually agrees and so she goes back to school to tell her teacher that she has decided not to continue college, that she is young and strong, and can make her own way in life.