David Garrick, a man from the city, disinherited by his father, wanders to a small town where he meets Mary Carroll, a simple little country girl. Mary holds clandestine meetings with Garrick, until surprised by her parents, who insist that her company see her at her home. Garrick has betrayed Mary and in answer to her pleadings as to when they will be married he sets the time for 3 o'clock of a nearby day. Great preparations are made at the humble little home while Garrick struggles with himself undecided whether to keep his promise. As he debates a letter comes advising of his father's death, and that he has been left the sole heir. Immediately his mind reverts to his old sweetheart, Katherine, a social favorite, and he decides to break his promise to Mary. He goes and leaves no trace of his whereabouts. At the Carroll home, Grace, Mary's older sister, who is studying voice culture in the city, arrives for the wedding. The hour of 3 o'clock arrives and patiently the little family waits. At 3 :15 Mary's father goes to summon Garrick. Upon his return he tells of Garrick's flight. Mary, holding in her heart the secret of her betrayal, is affected suddenly with a peculiar form of mental derangement. Grace sees a picture of Garrick and vows that she will avenge her wronged sister. As time rolls on each day at 3 o'clock, arrayed in her simple wedding gown, Mary sits and waits and waits for him who seemingly will never come. Grace, back in the city, becomes a popular favorite known as Madame Mimi. During one of her recitals Garrick is among the audience. His sweetheart of the former days became tired of waiting for him and married, and he became a man about town. He is introduced to Madame Mimi, who immediately recognizes the betrayer of her sister. Their meetings become frequent. Soon Garrick confesses his love for her and she, in reply to his proposal, replies, "Yes, tomorrow at 3 at my apartments we will wed." He is somewhat startled but she retaining her composure, questions him for his actions. Mary and Mrs. Carroll are called by wire, and plans are laid for the wedding the next afternoon.