Habeas Corpus concerns the aging Dr. Arthur Wicksteed and his pursuit of a nubile patient, Felicity Rumpers. Wicksteed’s wife, Muriel, is, in turn, lusting after the charming head of the BMA, Sir Percy Shorter, who, as well as being Wicksteed’s old rival, turns out to be Felicity’s father – the result of an under-the-table liaison during an air-raid with Lady Rumpers, her mother.