In literature, a climax was the point where the plot culminated in a single dramatic act or image.
In 2286, Spock defined a joke as "a story with a humorous climax". (Star Trek IV: The Voyage Home)
At the climax of the novel Hotel Royale, its narrator Mickey D murdered the hotel's bellboy. (TNG: "The Royale")
In 2376, the playwright Kelis threatened to kill off B'Elanna Torres's character at the climax of his play. (VOY: "Muse")