The Great Play is a play based on the book The Notebook, The Proof, The Third Lie: Three Novels by the Hungarian novelist Agota Kristof. The play revives the twin brothers from the novel who lived in the socialist system during the time of World War II. The theater group Haddangse questions if the twins would actually be able to survive in the contemporary society in their means of survival, and meditates on the human existence and identity.