Headlong Hall is the first novel by Thomas Love Peacock, published in 1815 (dated 1816). As in his later novel Crotchet Castle, Peacock assembles a group of eccentrics, each with a single monomaniacal obsession, and derives humor and social satire from their various interactions and conversations. The setting is the country estate of Squire Harry Headlong Ap-Rhaiader, Esq. in Wales.

Deep in the fens of the British coast sits the gloomy mansion that goes by the name Nightmare Abbey. It is inhabited by persons of very low opinion of the human race, and in fact they pride themselves in the depths of their detestation. Others of its denizens believe the ultimate exercise and product of the human mind ought to be chaos.
Now let the young master of the house get snared by the wiles of a beautiful young lady. And for good measure, toss in another beautiful young lady. Now Scythrop (named in honor of an ancestor who became bored with life and hanged himself) is about to find that two such make too much of a good thing!
Peacock wrote Nightmare Abbey as a satire...