影片讲述不擅长与人交往、经常偷偷看BL漫画的17岁女高中生佐山丽(芦田饰)，与丈夫去世后独自生活、同样爱好BL题材的75岁老妇人市井野雪(宫本饰)，两个兴趣相投的人之间建立的一段忘年交。

BriefMeetingsisaboutalovetrianglebetweenthreeverydifferentpeople.Nadia,acountrygirl,fallsinlovewithMaskim,aroamingguitarplayinggeologist,andinhersearchforhimsheendsupworkingforValentina,hislong-distance,bureaucratwife.NadiabeginstoworkasamaidforValentina,butastheyspendtimetogethertheyhaveflashbackstotheirbriefmeetin...