平凡小镇富山,年近60的泷岛彻(三浦友和 饰)是一名有着42年驾驶经验的资深电车司机。他保持着35年无故障的记录,一心扑在工作的同时则忽略了与家人的交流。再过一个月泷岛将迎来退休的时刻,他一面计划着退休后和妻子佐和子(余贵美子 饰)的悠闲度假生活,一面又百感交集,恋恋不舍这个奉献毕生的岗位。然而佐和子却向他提出希望重返护士岗位的要求,本就心存芥蒂的二人为此大吵,佐和子更是愤而出走。来到公司,心情烦闷的泷岛又不得不承担起培养新人小田的重任。他始终无法知晓,妻子心中怀有怎样的秘密与感受。 退休的日子越来越近,而泷岛夫妇的婚姻似乎走到了尽头……Railway driver Takishima Toru works everyday without thinking about anything else. He just realizes he is 59 years-old with only month to go for mandatory retirement. His wife Sawako has always supported him as a faithful housewife. She is 55-years-old. The couple prepare to start a new life in their retirement years. One day, Sawako declares that she will work again as a nurse. She quit her job prior to their marriage. Toru doesn't understand his wife's desire to go back to work. They argue over the matter and Sawako leaves their home. A crack in their relationship gets wider. Finally, Sawako asks for a divorce .