Naagin (shape shifting female snake) is a story of love and revenge. Naagin delves into the life of Ritik. Shivanya is stuck between two extreme emotions -- love and vengeance. Shivanya's friend, Sesa is her support system, but she has an ulterior motive that no one knows about. The constant conflict between love and revenge drive these protagonists together as their lives clash in a coming together of their past histories.