Rebellious Princess Natty of Orchidhali is a member of the floral caste and lives in a luxurious, sunshine-filled palace. But once she refuses her arranged marriage, she is forced to flee the palace. She ends up in the dark realm of the Untouchables, the very lowest caste of society, where a strange form of leprosy reigns as a result of the lack of sunlight. Natty meets an Untouchable named Sami, who is just as rebellious as she is, and together they make a plan to leave the shadows of the underworld and return to the light. But just as they are about to make their escape, a battalion of soldiers arrives, and Sami ends up in prison.