Indiana is the story's heroine, a young noblewoman descended from French colonial settlers from Île Bourbon (now La Réunion) and currently living in France. Indiana is married to an older ex-army officer named Colonel Delmare and suffers from a variety of unknown illnesses, presumably due to the lack of passion in her life. Indiana does not love Delmare, and searches for someone who will love her passionately. She overlooks her cousin Ralph, who lives with her and the colonel. As it turns out, Ralph is in love with Indiana.