Just as their boat sets off for the day, Deborah (Crain), Rita (Southern) and Lora Mae (Darnell) receive a letter from the alluring Addie Ross (narrator Celeste Holm) stating she has left town with one of their husbands. Each wife spends the fretful day pondering the state of her marriage and the affection each of their husbands has for Addie. By the end of the day, each woman is convinced she must surely be the betrayed wife.