The Possessed. If you analyze that novel from the purely technical viewpoint, you see that it is made up of three lines evolving simultaneously, each of which, if need be, could make an independent novel: (1) the ironic novel of the love between Madame Stavrogin and Stephan Verkhovensky; (2) the romantic novel about Nikolai Stavrogin and his amorous relationships; (3) the political novel about a revolutionary group. Since all the characters know one another, a subtle storytelling technique easily manages to tie the three lines into an indivisible entity.