Annalise Avery would rather run away than marry the despicable man her stepfather has chosen for her. All he wants is her fortune anyway. Escaping with two servants, Annalise takes employment at Lord Gardiner's town house, disguised as a housekeeper. No one suspects that the new housekeeper for his wild lordship's London pied-à-tierre is a diamond of the first water and a famous horsewoman.
But as Annalise becomes familiar with Gardiner's tomcatting, she vows to thwart the despicable man and his lascivious ways. Sleeping powders in the wine and fleas in the bed do just the trick!
In the meanwhile, his lordship has grown quite preoccupied by the very mysterious Lady in Green who rides through the park atop a magnificent steed, spurring hearts young and old - including his own!