An。affluent。medical。professor,。Komiya,。and。his。bossy。wife,。Tokio,。are。to。look。after。Setsuko,。their。high-spirited。niece。from。Osaka.。Setsuko。is。a。liberated。woman。who。does。what。she。wants,。including。smoking,。even。though。she。is。a。minor.。On。Saturday,。the。professor。does。not。feel。like。going。to。his。weekend。golf。game,。but。his。wife。packs。him。off。anyway.。So。he。leaves。his。bag。at。the。apartment。of。his。student。Okada,。and。goes。to。a。bar。with。a。friend.。Setsuko。traces。him。there,。and。insists。that。he。take。her。to。a。geisha。house.。When。she。gets。rather。tipsy,。the。professor。calls。Okada。to。take。her。home,。while。he。sleeps。at。Okada's.。The。wife。becomes。suspicious。of。Setsuko。when。she。sees。Okada。bringing。her。home,。and。also。of。her。husband。when。she。discovers。that。he。did。not。go。golfing.