寅(yín )次郎(láng )(🔨)(渥美清饰)鸟倦(🏽)归巢,返回柴(chái )又老(🕟)家,却(🔱)发(fā )现家里(lǐ )来了个(🎗)不速之(zhī )客(🐉)─(🛤)─大(🍖)学教授(shòu )冈(gāng )(🐮)仓(米仓齐加年饰(shì ))。寅正怒著(zhe )离(📼)家之际,童年(🕔)知己千(qiān )代(八千草薰饰(👁))竟(jìng )突然到(dào )访(fǎng )。两(🏐)人(rén )由儿时趣事谈(tán )起,感情突飞猛进,但原来同(tóng )时间,冈仓教授亦(🚢)对千代暗生(shēng )(🔩)情愫。初次(🛑)面临三(sān )(🖲)角(🔢)恋(❔)危机的寅(yín ),究竟如何(hé )进退?