The scene is London. Sir Timothy Treat-all, an old seditious knight, that keeps open house for Commonwealthsmen and true Blue Protestants, has disinherited his nephew, Tom Wilding, a town gallant and a Tory. Wilding is pursuing an intrigue with Lady Galliard, a wealthy widow, and also with Chariot, heiress to the rich Sir Nicholas Get-all, recently deceased. Lady Galliard is further hotly wooed by Sir Charles Meriwill, a young Tory, but she favours Wilding. Sir Charles is encouraged in his suit by his roystering uncle, Sir Anthony. Wilding introduces his mistress Diana to Sir Timothy as the heiress Charlot; and at an entertainment given by Sir Timothy, Charlot herself appears, disguised as a Northern lass, to watch the progress of Tom’s intrigue with the widow, who eventually yields to him. Sir Charles, none the less, backed by Sir Anthony, still persists, and after various passionate scenes forces her to consent to become his bride. Meanwhile Sir Timothy has arranged a marriage with Diana, whom he firmly believes to be Charlot. During the progress of the entertainment he is visited by a strange nobleman and his retinue, who offer him the crown of Poland and great honours. That night, however, his house is rifled by thieves and his money and papers stolen. He himself is pinioned hand and foot, the foreign lord bound fast in his own room, and all his followers secured. Sir Timothy having married Diana discovers that she is none other than his nephew’s mistress, and, moreover, the Polish ambassador was Tom in masquerade, the attendants and burglars his friends, who by obtaining his treasonable correspondence are able effectually to silence the old knight. Wilding is united to Charlot, whilst Lady Galliard weds Charles Meriwill.