"Анна Каренина" is a novel written by Лев Толстой, first published in 1877. The story revolves around Анна Каренина, a married woman who falls in love with Алексей Вронский, a dashing officer. Their passionate affair leads to societal scandal and personal tragedy, exploring themes of love, fidelity, and the constraints of society. The novel also features other characters, such as Константин Левин, who represents the struggle for personal happiness and fulfillment. Through their intertwined lives, Толстой examines the complexities of human relationships and the moral dilemmas faced by individuals in a rigid social structure.