Caroline Grannard, one of the richest women in New York, is married to Greg, a successful stockbroker.  Novelist Julian Tierney is in love with Caroline and begs her to divorce her husband and marry him.  She is in love with her husband, however, and is sure that he is equally faithful to her.

Greg and Caroline hold a weekend house party, which is attended by Julian, Malbro, a friend of Caroline's who is in love with Julian, and Alison Adair, with whom Greg is having an affair.  When Caroline sees her husband kissing Alison, she asks Greg if he wants to marry Alison and, when he says yes, agrees to a divorce.

Julian meets Caroline in Paris after her divorce is final.  He is on his way to Romania on a writing assignment and asks her to marry him.  She begs for more time and, although she insists that she no longer loves Greg, Julian assumes her concern for her former husband is love and leaves Paris without her.

When Caroline returns to the United States, she learns that Greg and Alison are having a baby.  Malbro has done her best to win Julian's love, but when he announces that he is leaving for China and India, hoping to get over his love for Caroline, Malbro telephones Caroline and tells her.  After Caroline searches out Julian, they profess their love for each other and spend the night together.  Alison tries to create a scandal but is stopped by Malbro and Greg, who hurries her to the car.

On the way home, they quarrel and the car crashes, killing Alison and seriously injuring Greg.  The doctor tells Caroline that she is the only one who can save Greg, and when Greg begs her to stay, she sends Julian to China on his own.  Before he leaves, however, she insists that a hospitalized judge marry them in his room, explaining that she will join Julian as soon as Greg has recovered.