Returning to familiar places after a long absence, Mary Fairfield learns that Hugo Layton, with whom she exchanged vows of eternal love four years ago, is about to make the irreparable mistake of marrying a woman whose heart is given to another. Mary has only three weeks to win back her beloved, and at the same time arrange the fate of the unfortunate bride. She has to resort to the most desperate tricks, but when you love, all means are good!