Her husband left home thirty years ago and vanished without a trace. Now he returns successful, accompanied by another woman and a child. He looks down on his wife for being nothing more than a street vendor selling vegetables and is determined to divorce her. Worse still, the woman brings the child to their home and brazenly demands that the wife make room for them. Heartbroken, the wife is mercilessly thrown out by her husband, finally seeing his true colors and resolving to divorce him without hesitation. When her three daughters-in-law learn what happened, they firmly take their mother-in-law's side and fully support her in defending her rights.