The niece of a wealthy manufacturing aunt has secretly married. Her husband has lost his way during the night in his pajamas at a spa and ended up on the balcony of an attractive singer.

Three young couples who are friends get married on the same day and promise to celebrate their copper wedding anniversary together in seven years. But seven years is a long time, and all three marriages are now in crisis. However, a heartfelt letter from their late teacher sets them back on the right path.