The plot is based around the ancient Flawse family, landed gentry based at the falling-down Flawse Hall, (near "Flawse Fell") in the wilds of Northumberland, just south of the Anglo-Scottish border. The single remaining family member is a cantankerous octogenarian named Edwin Tyndale Flawse. His illegitimate grandson Lockhart (aka "the Bastard") combines sexual and educational innocence with an alarming propensity for violence when he or his wife is threatened. The old man was born in the late 19th century, and his main aim in the very autumn years of his life is to find the father of his bastard grandchild and flog him to within an inch of his life.