"Les Liaisons Dangereuses" is a novel written by Pierre Choderlos de Laclos in 1782. The story is set in pre-revolutionary France and revolves around the manipulative games of two aristocrats, Marquise de Merteuil and Vicomte de Valmont, who use seduction and deceit to control others for their amusement. The novel is structured as a series of letters exchanged between the characters, revealing their schemes and moral corruption. It explores themes of power, betrayal, and the consequences of manipulation, ultimately leading to tragic outcomes for many involved in their dangerous liaisons.