Le Cocu is a novel written by Charles Paul de Kock and first published in 1904. The book is set in Paris and follows the story of a man named Jules, who becomes a cuckold after his wife, Marie, has an affair with his best friend, Gaston. Jules is devastated by the betrayal and becomes obsessed with seeking revenge on Gaston. He concocts a plan to humiliate Gaston in public and expose his infidelity to the world. However, as the plan unfolds, Jules...