Five years after a woman disappeared in the sea after a plane crash, her husband remarries and sets off to be with the new wife only to be confronted by the woman he had pronounced legally dead.

Ellen Arden is rescued from a South Seas island and brought back to the United States 5 years after she disappeared in an airplane crash. On the same day, her husband, Nick, is in court to hear Judge Bryson declare Ellen legally dead. Nick then marries beautiful but dumb Bianca Steele, and they go to a resort hotel for their honeymoon. Meanwhile, Ellen returns home and is distressed when her two children fail to recognize her. Learning from Nick's mother that he has just remarried, Ellen proceeds to the honeymoon hotel, where Nick immediately catches a glimpse of her. Still in love with Ellen, Nick feigns a back injury and returns home with Bianca. Ellen flies home and arrives ahead of the newlyweds, pretending to be Nick's masseuse. Nick learns that a man was also stranded with Ellen, but she describes him as small and unappealing. Unknown to Ellen, Nick goes to see this man, who is actually a handsome athlete, while Ellen hires a meek shoeclerk to impersonate him. Afterwards, Nick listens to the story told by Ellen and the shoeclerk but reveals that he knows the truth. Enraged, Ellen rushes home, with Nick in pursuit. Bianca is there, and Nick confesses that Ellen is his wife as detectives enter to arrest him for bigamy, a charge brought by his mother. Judge Bryson annuls Nick and Bianca's marriage, but when Ellen's real island companion arrives to identify her so that she can be declared legally alive, she becomes flustered and Nick storms off in a jealous rage. Later, at home, Ellen is about to tell the children that she is their mother when she learns that Nick has already informed them.