Move Over, Darling

A couple, Nicholas and Ellen, are on a plane that crashes in the South Pacific. Ellen is presumed dead, but is actually rescued by the Navy and returns home five years later to find her husband has remarried. She shows up at their honeymoon resort, where her husband is now on honeymoon with his new wife, and demands to know why he didn't tell his new wife the truth. Meanwhile, the husband is torn between his love for his first wife and his feelings for his new wife, while his first wife is struggling with her own feelings of jealousy and betrayal.