When Lovejoy is wrongfully imprisoned--again--he's offered a way out with a catch. In exchange for his freedom, he agrees to a marriage of convenience to divorced millionairess, Laura Moon, as a way to help her hunt down her former husband. Sensing murderous vengeance in the air, Lovejoy intends to abscond when he can, but instead goes along with it at the insistence of his apprentice, Lydia and his teenage son, Mortimer. Lovejoy is evasive, but the deaths of his old forger friend, Smethie, and transvestite Paltry compel him to concede.