监狱是自由的牢笼，囚禁着梦与希望，却也蕴藏着反思与救赎的可能。江湖儿女豆瓣

　　A movie director is approached by his old math teacher with a great movie idea: the Devil declares that the Earth is hell. The director rejects the idea, but subsequent events in the life of a writer, a friend of the director's, and a young prostitute he loves seem to prove the math teacher's idea.